Fusion 4.0 Curing Light

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Product Number: Silver: 7600080
Blue: 7600080-B
Pink: 7600080-P
Gold: 7600080-G

The most versatile and powerful curing light

You’ve got the POWER!!!

Incredible size and unmatched durability

  • Improved angulation with lower profile for easier access in the oral cavity.
  • Easier to use and better ergonomics with two raised buttons including a large ON/OFF button for easy activation.
  • Upgraded LCD with multi-color backlight for power mode display
  • Solid metal construction with improved shock proof durability
  • Retro-compatible modular design.
  • Cordless or corded with replaceable battery

Not just a curing light, but a versatile multi-purpose light with built-in upgradable functions:

  • Built-in oral screening program for oral cancer screening
  • Built-in caries detection upgradability
  • Built-in programs to upgrade for teeth whitening

James T Smith Jr DMD, MAGD, FICOI

Since using the DentLight since 2013, I have found it to be very useful and convenient.  It is easy to use for curing, transillumination and exams with tissue fluorescence.  The option which I have found most helpful is the low level Red Healing attachment.   Following a long dental procedure, I simply switch from the curing to the healing attachment, and my patients are pleasantly surprised at the relief they feel in the TMJ area and muscles of mastication. I recommend the DentLight.


James T Smith Jr DMD, MAGD, FICOI

One of the best lights on the market.

Get the Fusion. One of the best lights on the market. I bond almost every restoration I do in my office. I refuse to jeopardize the quality of the bond, and thus my restoration and my reputation because I wanted to save a few hundred dollars and bought a cheapo light. The Fusion comes with a 2 mm tacking tip. The wand itself can be detached from the body and you can add other accesories, like a oral cancer detection light.

drstogie, Dentaltown.

Dr. Doug Sakura

Once I bought 1 Fusion light, I bought a 2nd and was very happy.

I used Demetron for years.  Once I bought 1 Fusion light, I bought a 2nd and was very happy.  Demetron lights went into the transillumination mode only, after buying the fusion lights.

austindoc2, Dentaltown

Dr. Michael Foster

Love the fusion lights

Love the fusion lights.  I have 3 of them for the past 2 yrs with no issues what so ever.  Awesome light at a very good price. 

Dr H, Dentaltown

Very nice light, cordless and has never run out of power.

Nearly two years using the Fusion exclusively,  very nice light, cordless and has never run out of power.  High output, large tip, very dependable for me, and quite inexpensive. Excellent sleeves are available and easy to use. 

raclro, Dentaltown

An excellent light

I am happy to say that the FUSION is an excellent light

Dr. David Hornbrook

Everyone in the office loves them

I have 4 Fusion curing lights now for 4 months. No problems so far, quick cure, cordless LED, very small footprint for the charger, never run out of juice. Everyone in the office loves them.
Dr. Scott Leuene

Finest Instrument I Have Used in Years!

“This letter is in reference to the product FUSION hand-held curing light, which is the finest instrument I have used in years. It is small, powerful, easy to use, and has been extremely dependable. Furthermore, it is amazing that such a quality product has been marketed at such an outstanding low price. The other thing that has been remarkable about this light is the depth it will go in the tooth structure. I have found the material harder when set with this light.”
Salt Lake City, Utah, 2006
Stephen M Burton, DDS

FUSION shows the highest power density…

As a result of its low light dispersion, FUSION shows the highest power density at 5-mm tip distance among 22 LED lights and provides more than two times the intensity of many other LED curing lights at 10mm away from the tip.

“A Clinicians Guide to Light Curing”, Academy of Operative Dentistry, Annual Meeting, Feb. 2007.
Dr. Fred A. Rueggeberg

Favorite Cordless Curing Light

“Fusion curing lights are the best….covered in metal, not some cheap plastic. Fairly inexpensive, too. I must credit Scott Leune (from the “Not your average start-up” thread) for recommending them to me. Thanks, Scott !! ”

Cult45, Dentaltown Message Board

One of the Best!

From the Clinic Director – Orthodontics, Marquette University – School of Dentistry:

“I must say that FUSION lamp is really, one of the best I’ve ever seen. I have used for almost a year and no problem has ever happened. My cousin also bought the lamp, and he is really happy with it too. DentLight has a great product. Keep doing, and improving what you have.”

Dr. Jose A. Bosio

Very fast in curing, it really cuts time in half

This unit (FUSION 2008) is very simple to use, both the Dr. and myself can’t say enough good things about this unit- GREAT! … Power enough to get the job done in less time than our current light. … Very fast in curing, it really cuts time in half. … A great space saver. The unit is sleek, we like the nickel finish, classic look. The options are simple to use and the use for veneers for tacking time is wonderful

Blair Keck DDS

A mighty light punch in a small package

I also reduced the size of the headlight on my loupes with a small LED light from DentLightcalled the Nano loupe light. The light was quite a bit brighter and smaller than my previous model. I have a Fusion LED and a Nano Head Lamp and they both pack a mighty light punch in a small package.

Dr. Marty Jablow

Really nice light. very durable

The fusion is a really nice light.  very durable.  also has the ability to be upgraded to an oral cancer screen light.  very nice product for the price.

Dr. Richard Rosenblatt

High power output

The FUSION’s high power output carries the polymerizing photons further into the composite, making the active working distance longer and allowing deeper bulk curing of the composite restoration. In fact, as composites with ever lower polymerization shrinkage properties are developed, the FUSION curing light may allow single-step bulk curing of these materials (as opposed to the slower,  sequential curing of individual thin layers).

Dr. George Freedman DDS

My office highly endorses this product

My staff and I have used the Fusion curing light for several years and are very pleased with its functional design and durability.  Its short curing time, due to a high powered focused beam, ensures complete adhesive set in minimal time that adds to both efficiency and productivity.  My office highly endorses this product.

Dr. Mark S. Geller, DDS, MSD, P.A

The most versatile on the market…

Fusion light system incorporates: white light – curing light – oral cancer detection light. It is truly the most versatile on the market… The transillumibation differentiates primary and secondary dentin, indispensable as you explore deeper into the root, hopefully avoiding the disappointment of a root ” perforation” and locating the pulp canal to gain access to the canal terminus at the apex.
Dr. James Malooley DDS, MSD

The greatest Irradiance at all distances up to 8mm

Four commercial curing lights were used: Demi (Kerr), Bluephase 16i (Ivoclar), Fusion (Dentlight), and Flashlite Magna (Discus). The Fusion delivered the greatest irradiance at all distances up to 8mm.

Richard B. Price


Fusion light is the light of choice

In my hands the Fusion light is the light of choice compared to the Valo. Thank-you for this simple yet powerful tool.

Dr. Chaim Rosenbaum

One of the most powerful and compact curing lights

Dentlight has the Nano LED light at 11 grams ( new model reported to be 6) and 4200 footcandles. Company also has one of the most powerful and compact curing lights (Fusion).

Paul Feuerstein

Lightweight, easily handled, smartly designed instrument

The Fusion Curing Light by Dentlight offers great versatility in a lightweight, easily handled, smartly designed instrument. Not only is it a fast curing light but it comes with a masking shield that reduces the light to a pinpoint for spot curing laminates while placing them if that technique is desired by the clinician.

Dr. Robert Weller

The light guides are excellent for tack and wave cementation of indirects

The dentlight Fusion is a cool little addition to your armormentarium: it is well made and neat looking and its small size allows it to reach difficult to access areas such as distal surfaces of second molars: this is particularly helpful for patients with restricted opening. The light guides are excellent for tack and wave cementation of indirects. I would unhesitatingly recommend this product .
Jason Smithson BDS

Great addition to our practice

I have been using the Fusion curing light for three years now. It has been great addition to our practice, It has a powerful beam, nicly designed that can access easily all teeth in the mouth.  It’s also well constructed, durable product. I have piece of mind that I am curing well my first increment in a deep box!!! Thank you for a great product.
Amer Abu-Hanna DDS MS

High Power… Tiny Footprint.

We’ve been impressed with the ease of use and most importantly, the intensity of the light resulting in a superior depth of cure. We’re also impressed with the low profile design that makes it easier to get the light parallel to the curing surface. It has a variety of curing cycles that will meet the needs of any user. The price is also right, giving you great value for the amount of energy it produces. This device comes with my highest rating. Dr. John Flucke

The Best Light I’ve Ever Used

I strongly recommend the DentLight Fusion. It is by far the best light I’ve ever used. It has a 5 sec cure for most composites, great ergonomics and can be passed like a hand instrument, it’s very durable, I can use it to seat a CEREC / other indirect restorations and tack cure it. I bought one for every operatory. I also use the bar mount charging unit / docking station so that it is always charged. You should be able to buy it from any dealer that you use.

Dr. Scott D. Benjamin

Great all-around light for the dental office

The Fusion Light is one GREAT all-around light for the dental office. You get the benefits of three lights in one! Curing, Transillumination and Oral Cancer Screening. The Curing power is remarkable, the power of the white light attachment for caries and cracked tooth detection is great and the ability to use the DOE attachment for an enhanced oral tissue/cancer screening and evaluation makes this light the complete package!
John Comisi DDS., M.A.G.D.

So compact and lightweight…

The Fusion is so compact and lightweight, and I have found it to be very well-balanced and comfortable to hold. Its controls are easy to use and see, and its low-profile curing head fits nicely into most areas of the mouth.

With the advent of low polymerization shrinkage resins there is the opportunity for bulk filling, and that requires a powerful light. DentLight’s Fusion Curing light is just such a powerful light that offers two easily toggled power modes

I would recommend the Fusion without reservation to my colleagues who are in the market for a high-power, versatile curing light that is economical and so useful in everyday practice.
Dr. Howard Glazer

FUSION does much more than curing

CHICAGO, IL, USA: The FUSION curing light, available from DentLight, is much more than just a curing light. In fact, it is so versatile that the Richardson, Texas-based supplier refers to it as a “Dental Oral Exam System.” As Dr. Richard Liu, president of DentLight, explained, in addition to its curing functions, the FUSION can also be used for caries and composite detection, for extra magnification illumination, and for the detection of oral cancer.


What influenced the way you practiced in 2010?

The curing of composites was enhanced through the use of DentLight’s Fusion and Kerr Dental‘s Demi Plus.

DentLight Fusion is a pen-grip-style curing light that has high output and can also be upgraded to a cancer detection aid. The Demi Plus continues the Dematron tradition with gun-style high-power curing. I am appreciating the faster curing and feeling better about the depth of cure from these lights.

I also reduced the size of the headlight on my loupes with a small LED light from DentLight called the Nano loupe light. The light was quite a bit brighter and smaller than my previous model.

JCDA curing light study article

February 21, 2014


Curing lights are not all equal

March 22, 2011

Effect of Distance on Irradiance and Beam Homogeneity from 4 Light-Emitting Diode Curing Units By Richard B. Price, BDS, DDS, MS, PhD, FDS RCS (Edin), FRCD(C); Daniel Labrie, PhD; J. Marc Whalen, PhD; Christopher M. Felix, BSc Journal of the Canadian Dental Association, March 17, 2011 http://www.jcda.ca/article/b9

Curing Lights

Delving Into Reality: A Conversation With Dr. Michael Miller

January 23, 2011

Delving Into Reality: A Conversation With Dr. Michael Miller Dentistry Today, February 2010 By: Dr. Damon Adams


Buyer’s Guide to LED Curing Lights

January 23, 2011

Buyer’s Guide to LED Curing Lights Dental Practice Management,  Spring 2010 By: George Freedman DDS, FAACD, FACD


Super Fast Curing

December 19, 2010

By Dr. Michael Curtis

Do composites take too long? Consider one of the new ultrafast LED curing lights. The “FUSION” by Dentlight cures with 1500mw so each layer requires only 5 seconds. You’ll be amazed how much time you’ll save.Read more

The Profitable Dentist - Fall 2009: Recession: How to Make a Fortune!, p44.

FUSION – Cordless, LED curing light from DentLight

January 24, 2010

By Reality Esthetics

FUSION – Cordless, LED curing light from DentLight Reality Esthetics, January 2010

FUSION - Cordless, LED curing light from DentLight
Literature and Uncategorized
Curing Lights

Fast curing – ideal when you need a quick procedure

August 19, 2009

By Dental Advisor - Clinical Evaluations

“Small and lightweight with several curing options” “Easy access to posterior areas.” “Fast curing – ideal when you need a quick procedure.” “Raised activation buttons are great!” Read more

FUSION, August, 2009

High-intensity LED Light-curing Units – The Heat They Produce

September 24, 2009

Ron Yapp, MS, John M. Powers, Ph.D. A primary goal for improvement of LED light-curing units has been to increase the light intensity – the thought being, the higher the intensity, the more rapid and more thorough the cure. Unfortunately, heat generation is a typical consequence of higher light intensity. The amount of heat that develops when light interacts with tooth tissue, resin composite or soft tissues is dependent on: the intensity of the light, how much of the light is reflected orRead more

High-intensity LED Light-curing Units - The Heat They Produce

FUSION rates as the best access in the mouth…

October 19, 2009

By ADA (American Dental Association)

FUSION received favorable rating in cure depth and other performance metrics. ADA Surveys indicate that FUSION rates as the best access in the mouth, the most ease of use and comfort, the second best in acceptable cure time after the plasma Sapphire light, and the third in durability rating after the plasma and Optilux 501 halogen light.Read more

Literature and News

Curing Lights: What you should know before buying one

January 24, 2011

By Michael B. Miller, DDS

The selection of a curing light that fits your style of practicing remains one of the most important equipment purchases you will make. If you have an active restorative practice, it is a device that you use virtually every time you treat a patient. The right light can help you achieve success, while the converse is true – the wrong light can make your efforts more tedious and your results less consistent.Read more

Oral Health Journal
Curing Lights

Dental Economics asks Dr. Christensen, “Are Bulk-Fill Composite Restorations Working?”

September 1, 2012

By Dr. Christensen

I highly recommend that practitioners who haven’t recently upgraded their current lights look into upgrading soon.

Dental Economics

Successful Light Curing – Not As Easy As It Looks

July 10, 2013

By Howard E. Strassler, DMD

Despite appearances that all curing lights are adequate, research has demonstrated that not all light-curing devices are equivalent! It involves specific devices and techniques, not all of which are equivalent. I have seen data for the evaluation of more than 145 different models of curing lights from 42 manufacturers. The prices of these lights range from $27-$4,900, with stated irradiance values ranging from 400-5,000 mW/cm2. While irradiance is the most common and easiest technique to measure curing light tip energy,Read more

Curing Lights

Are all curing lights the same?

All lights are not created equal. This is explained in detail in "Light Curing Guidelines for Practitioners" from a group of experts in the field of dental restorations. Lights are different not only from their performances but also their constructions and service supports. The major performance parameters are light intensity, tip size, beam uniformity (homogeneity), wavelengths and beam dispersion. The results can be very different not only short term from sensitivity and bonding failures but also longer term.

How will you compare FUSION to VALO Cordless?

    FUSION and VALO are two of the best brand name curing lights on the market in terms of performance and durability.
    Both lights are made of aircraft aluminum with superior construction for ease of access and drop proof reliability.
    At the curing light tip, VALO has lower power than FUSION 5 and higher power than FUSION 4. At 8 millimeters distance from the light tip, Valo is about 50% less power than FUSION 5.
    FUSION has much better beam uniformity (homogeneity) and ease of use with its smaller weight (~30%) and LCD interface.
    VALO is designed on a uni-body aluminum to achieve the reliability and high power. It uses standard CRA123 rechargeable batteries with exposed counter stand open cradle battery charger. FUSION is designed with a modular aluminum body and shock-absorbing high quality components inside to achieve the reliability, flexibility, ease of use and high optical performance.
    Recurring costs for battery are about the same for FUSION and VALO Cordless:  FUSION's smart battery typically lasts more than 2 years and costs ~ $120 to replace it. VALO's battery warranty is 3 months which extrapolates to replacement cost for 2-years of about $128 (=$16x2x4). The difference is FUSION's smart battery is self-contained without your worry to stock and charge battery manually.
    From an ease of use standpoint, VALO is:
    1. not as easy to access both upper and lower with its fixed body/head.
    2. confusing o determine the power level and time to work with given there are three power levels and 9 timer settings indicated with five LED indicators. It also has a built-in 2 seconds delay in the Xtra Power mode between cures that will slow your speed down 40% demotivating you in using the high power capability.
    3. cumbersome to recharge the battery like a consumer-grade flash light that requires you to unscrew a cap and take out the battery to a charge in a cradle.
    4. worrisome to disinfect and clean exposed charge cradle in a clinical environment.
    1. easy to access both the lower and upper with its 360 degree swivel light head.
    2. easy to use with its lighter and balanced weight. Its advanced LCD and metal keypad intuitively display the power/timer setting and color code its large activation button. Its high power is always available to the user for maximum efficiency.
    3. easy to charge the smart battery with self-contained metal charging stand with back direct plug capability for extended operation. The smart battery is invisible to the user for multiple years.
    4. easy to disinfect and clean the light with everything self-contained without exposed components.
From ROI standpoint, FUSION significantly exceeds that of VALO Cordless. The FUSION kit costs ~30-50% less than VALO Cordless with more offered: three extra tips (tacking, 9 and 13mm), 50 extra barrier sleeves and 9 more months warranty on battery.  More importantly, FUSION offers the upgradability that no other curing lights do including oral cancer screening, caries/canal detection, chair-side bleaching and more for added profit streams.

How can I measure the power of curing light?

Traditionally, curing lights are measured with "calibrated" radiometers on the light intensity or power irradicance in mW/cm2 (milliwatt per square centimeter), meaning the power in mW divided by the area of the light exposure in cm2. The radiometer, however, as "calibrated" as the manufacturers claimed, is not an accurate but a relative measurement instrument. The powers measured from radiometers are the irradiance level at the tip of a curing light, which does not indicate the power level received by composite inside a cavity.  Additionally, readings from radiometers vary significantly from their actual values. For example, a light measured on Kerr LED radiometer for 800 mW/cm2 displays 1066 mW/cm2 on Cure Rite, and 1280 mW/cm2 on Radii Radiometer as demonstrated by BlueLight Analytics, who has developed a highly accurate system called MARC that measures light intensity at all distances based on NIST calibrated spectrometer. FUSION Curing Lights are measured using both common radiometer and a precision NIST calibrated spectrometer system to ensure each production unit meets the criteria in our specifications. Because of the low dispersion from the patented FUSION lens system, you can be assured that FUSION delivers similar energy for both anterior and posterior standard restorations and more energy to bonding brackets than other LED lights on the market.

How much time does it take to cure with FUSION?

Typical curing time is 5 seconds for A3 or lighter shade with 2 mm thickness composite and 4 seconds for metal bracket/3 seconds for ceramic bracket bonding. The table below lists typical curing times for some common composite:
Manufacturer 3M Ivoclar Dentsply Kerr
Resin Brand Filtek Supreme Plus Heliomolar Tetric EvoCeram TPH3 XRV Herculite
Color/Shade A3E C6D A3 A2 A3 DY A3 YB
Cure Times (FUSION 5) 3 9 3 3 3 3 3 3
Cure Times (FUSION 4) 5 15 5 5 5 5 5 5
Cure Times (FUSION S7) 10 30 10 10 10 10 10 10
Please use the CURE TIMES instruction from your Users Manual for further details.

What are the recommeded cleaning procedures?

    a)       FUSION parts are recommended to be cleaned and disinfected with a cleaning solution including Cavicide, Lysol, Isopropyl or Ethyl alcohol. Do not autoclave or ultrasonic.
    b)       Thoroughly wipe clean handpiece, Charging Base and Eyeshield with a soft cloth or tissue damped with the cleaning solution. Do not spray or soak. Disinfecting agents and liquid must not enter any openings on unit in particular Metal keypad.
    c)       Clean curing lens and electrical metal contacts using Q-tips slightly damped (do not soak) with the cleaning solution.
    Safeguard handpiece opening area, metal keypad, charging plug, and lens against liquid and sharp objects as this may cause electrical short-circuit, permanent optical damage or malfunction

I have a FUSION, can I convert to DOE for oral cancer screening?

Yes. With FUSION, you have the options of upgrading to DOE  to perform soft tissue oral exam and oral cancer screening. Simply purchase the FUSION-DOE Starter Kit.

Why do I need a White Light Head and what is an “Exam Tip”?

The DOE full kit comes with a White Light Head for oral illumination and transillumination. FUSION curing light can optionally add-on White Light Head. It accomplishes two goals:
  • Illumination to have side-by-side visual under fluorescence and enhanced white light illumination with the same magnification image
  • Transillumination for hard tissue oral health exam including dental caries, fractures, and root canal.
The Exam Tip (also doubles as a Tacking Tip for veneers/crowns/brackets with curing light head) is a disposable black 3mm opening tip that adapts and snaps into the end of the light head to cut down side light emission and guide the light propagation into a focused filament of light. It enables transillumination into interproximal teeth and improves contrast of visual exams on anterior, posterior and endo root canal.

How do I make sure that the composites/adhesives are cured properly?

Proper composite cures are essential to good restorations that not only avoid tooth sensitivity and rework/bonding failure but also longer lasting tooth/brackets and happier return customers. Four core variables of proper curing are:
  • Curing Light Selection
  • Correct Operating Technique
  • Proper Composite/Adhesive Selection
  • Deliver Required Energy
FUSION has been proven to be the best curing light in power, ease of use and reliability. To operate correctly, make sure that the light is directed at the composite as close as possible. Use curing cap as the anchor to the cavity for stable positioning and direction. Test the composite outside of the mouth on a piece of paper or even better on a short tube (e.g. 2mm) cut from your compule. Check on the composite hardness on the bottom side to make sure that it is hard enough after your typical curing time. FUSION has been proven to deliver the most energy in a given period of time. With a typical curing time of 5 seconds, it easily delivers over 10J/cm2 which is the typical energy required for composite cure.

Why is FUSION better than other curing lights?

Every day, more than half of a million white filling restorations are performed using curing lights. Every year, 260 million white fillings are placed. Studies have shown that the average lifetimes of the fillings are only 5.7 years, far from what they should be due to improper cure since every curing light is different in terms of energy dosage they can deliver within a given time, in particular in filling pocket deep from the top surface. Most LED curing lights on the market today have an irradiance (intensity or power density) value below 1000 mW/cm2 while a lot of them significantly overclaim their power using artificially inflated radiometer. FDA guidelines require a minimum of 400 mW/cm2 for proper cure. Curing lights are the second most frequently used dental devices. The cost averages per use of the device is insignificant to the price of the device, which typically ranges from $300 to $1700 with some budget lights sold on the internet (with no regulation controls) going as low as $9. Many studies have shown that the low cost budget curing lights are not worth the investment given the poor performance and quality impacting the quality of a professional practice not to mention the legal liability. High power and rapid curing lights are highly desirable since the composite hardness and curing time are directly tied to the local irradiance. Therefore, uniform and high irradiance level are highly desirable for composite cure. Uncured composite results in tooth sensitivity, microleakage and increased wear of the composite that influence the success rate of a restoration or the result of a bonding failure. Aside from power or energy distribution, curing lights vary significantly in terms of their ergonomics, cordless vs. corded, functionality, wavelength and more importantly their quality and service/support. As the second most used clinical equipment, curing light selection is critical to the daily clinical operation and work flow. It is not worth buying cheap lights with no back up service and no validations of its performance considering the cost of redoing any fillings and brackets far outweighs the cost of the device. Proven clinically and scientifically (see Testimonials and Technology), FUSION is the latest and greatest LED curing light on the market surpassing its predecessors who have earned top ratings and reviews from the most reputable independent evaluations involving more than 60 independent practices and 20 leading opinion leaders. It is small and sleek yet unleashing the most power with lowest dispersion of any curing lights on the market today with its unique laser-sharp focused LED technology that zaps any composites in seconds. FUSION stands out
    FUSION distinguishes itself from the crowd of other dental curing lights as:
  • The most powerful: proven power of 4000 mW/cm2 (FUSION 5) and 2700 mW/cm2 (FUSION 4)
  • Minimum dispersion: power remaining at 2600 mW/cm2 and 1000mW/cm2 at 8mm distance from the light tip while almost all lights are below 400 mW/cm2
  • The most uniform beam pattern to ensure uniform composite hardness and minimum stress
  • Constant intensity throughout the battery running time and life time.
  • The smallest, the most ergonomic and easy to use with its intuitive and advanced interface
  • The most reliable with close to tens years field proven track record based on its solid metal construction with shock and water proof  design
  • The lowest profile light probe with 360 degree easy access
fusion5-low profile
    And above all: it is not just a curing light, but the most advanced light system that delivers upgrade options for more revenue streams:
  • oral exam for early detection of oral cancer
  • super high power transillumination for caries/fracture/canal detection
  • full arch bleaching
  • and more
FUSION is setting a new standard in LED Curing Light and it is the best buy in terms of its combination of performance and cost.

Does FUSION cure all materials?

Yes. FUSION is a handful of LED Curing Lights that cures all materials. It uses a smart patent-pending interchangeable 360 degree swivel LED light head that accommodates standard LED and violet LED enabling it to cure all dental composites.

Does FUSION generate heat?

In general, the higher the intensity of curing light, the more heat it generates. Common test of an LED curing light by pointing it to the finger and feeling how hot it gets from the light tip tells you the power and quality of a light. The higher the optical power, the hotter it is going to feel on your finger from optical absorption of your skin. If it does not feel anything on your finger right away, it is a low power LED light. For example, FUSION 4 at high power feels hot quicker than at pulse power. There are several techniques to manage heat from high intensity curing lights including FUSION:
  • Use appropriate curing times. Limit the exposure time on a single tooth to below 10 seconds at a time, which has proven to be safe.
  • Do not place light in direct contact with unprotected gingival, oral mucous membrane or skin. Prevent heat accumulation with a rubber dam in place or apply Kool-Dam on the gingiva and surrounding soft tissue prior to curing.
  • Use technique of blowing air from an air syringe on the tooth being restored at the same time the resin is being cured as suggested by Dr. Gordon Christensen.
  • Use technique of placing a wet cotton roll directly on the tooth crown opposite the side of exposure to lesson temperature rise.
  • Use Pulse Power Mode to generate minimum heat.
FUSION uses the most efficient passive cooling technology from aircraft aluminum as heat dissipator for LED. FUSION 5 is the most efficient curing light in that it generates the smallest amount of heat at the same energy than any other lights. It maintains its cool throughout the running times. Since light curing happens in short durations different from constant power sources such as computers, passive cooling without a fan is not only sufficient to ensure optimum performance without the annoying fan noise but also extends product lifetimes as is proven in the field for years. FUSION has a typical continuous run time of over 4 minutes before self thermal protection and shutdown in High Power Mode. Considering the extreme high intensity and perfect beam quality from FUSION light tip, typical composite curing time is just 5-10 seconds. The heat concern should not be an issue in normal clinical use.

What is Pulse Mode (Standard LED Power) Mode and when do I use it?

    Press and hold TM/PW Key for 3 seconds to set at Pulse mode (1300mW/cm2). Use this power mode to avoid heat. The matter of fact is, since FUSION is so much advanced and powerful, that the Pulse Mode (Half-power mode) is higher than or equal to actual power outputs of other leading brand LED curing lights with a similar tip size. For example, Demi with 11mm Turbo tip outputs 1100mW/cm2 power*. With its advanced heat cooling and power maintenance technology, FUSION generates minimum heat in Half Power mode and allows continuous operation without any interruptions.
    This mode is also used for extended running in oral exam and bleaching.
* Data from Reality Publishing: the Ratings - LED Curing Lights, Dec. 2008.

Is FUSION cordless and what is the benefit of cordless?

    Thanks to its superior technology and engineering design, FUSION has been independently proven as the smallest high power cordless light achieving performances in power and functionality no other corded or cordless lights can match. It takes the smallest counter space with a counter charger stand. Or it can sit right on your dental unit with optional dental unit charger holder. As powerful as it is, FUSION maintains consistent power through its battery run time.
    Cordless provides freedom of movement in patient treatment: allowing easier access without the cord dangling around and avoiding costly limitations to a single chair with room-to-room or chair-to-chair mobility. With proper design as demonstrated by FUSION, cordless avoids major long term failure in mechanical fatigue breakage from the cord.

How often does the battery need to be replaced and can the light be serviced?

    FUSION is designed using smart Lithium-Ion battery assembly with built-in micro-controller electronics for protection and smart charging. Together with the most reliable connection components with shock absorbing capabilities, it ensures the longest possible service time of close to 5 years in typical clinical uses. More importantly, it helps the clinicians avoid the hassles of dealing with the battery for a long time and offers the most efficiency in a professional environment.  Even in the case of a battery towards its end of life, users can easily replace the battery assembly with its screw-on connection.
    FUSION is modular in construction. User can easily replace the modular parts for field service. The light can be serviced by our manufacturing facility and authorized repair centers.

Specifications for: Fusion 4 Curing Light

Style Wand
Tip (# of sizes) 3 (3mm, 9mm, 13mm)
Power (mW/cm2) 2700 (± 10%, center 4mm beam)
Cure All Materials Yes(with purchase of optional violet light module)
Battery Smart Li-Ion rechargeable with built-in charging/protection electronics. 1-year warranty with typical service life of 5 years. User replaceable.
Run Time (minutes) 40 (high plasma-like power);
90 (Standard LED power)
Recharge Time (hrs) 1.5
Weight 3.9oz/110g
Timer options Constant 5, 10 (HiPower), 5, 10, 20, 60 (PulsePower)
Curing Time 5 seconds (A3 or lighter shades)
Standard Warranty 2 years (battery 1 year)

FUSION Technology

FUSION curing light uses patented lens technology enabling the control of LED light pattern into a soliton-like focused beam within a typical composite setting. Intrinsically, LED emits light in a pattern with a divergence of over 120 degrees. The divergence of light significantly weakens the light intensity at the bottom of a box as compared to the top. For  a typical Class II restoration with a depth of 4-6mm, the intensity can drop as much as 80% from the top to bottom layer resulting in less cure, more wear and sensitivity from a completed restoration. Similarly with bonding brackets, which is typically 3-8mm distance away from the light tip. Bracket bonding failures are a direct result of light tolerance over distance and positioning.


FUSION not only provides a uniform light distribution over composite areas but most importantly overcomes the intensity drop over distance. Consistent high power over spatial map and all distances significantly helps clinicians improve restoration quality and tolerance.

FUSION beam pattern

FUSION beam disperson dental

Ref. Richard B. Price; Daniel Labrie; J. Marc Whalen; Christopher M. Felix, “Effect of Distance on Irradiance and Beam Homogeneity from 4 Light-Emitting Diode Curing Units”, J. Can Dent Assoc 2011; 77; b9

FUSION uses the highest end LED with a full wavelength coverage to enable all composite initiators. It is precision crafted with an aircraft aluminum solid body with drop-proof durability.  It sets a precedent with an amazing amount of technology in a remarkably small and sleek design including an amazing LCD in a light this small with backlit metal keypad and raised buttons for easy activation.

FUSION is not only a 5-second high power curing light but also upgradable to perform oral cancer screening and caries detection. It is a complete package for clinicians’ everyday practice!


FUSION 4 significantly advances the technology and legacy from its predecessor FUSION 3.0.  It improves on the delivered power density and its legacy of reliability while most importantly on the ease of use, ergonomics and functionality. Following table compares those differences.

Attribute/Model FUSION 4 FUSION 3.0 Benefit
Keypad Two buttons:

– front large On/Off; – back timer/power

FUSION4 keypad

Three buttons- middle On/Off; – back timer and front power

fusion3 keypads

Simplified the operation to make it more ergonomic to operate and much easier to use/handle.Color coded large run button makes it hassle free and well balanced.
LCD Backlit

-High power whitekeypad power2
-Pulse power green
Regular LCD

– Power levels not displayed

Modern appeal to much nicer screen. New pulse power mode makes it easy control for low heat and low shrinkage cure.
Built-in Timer/ Program
-High power: 5, 10 sec.
-Pulse power: 5, 10, 20, 60 sec.
-Bleaching: 15 minutes
-Auto power on with any keys
-High power  5, 10, 20 sec
-Half power  5, 10, 20 sec
– Easy curing timer and pulse mode to avoid over cure and overheat
-Easy exam mode (60s)
-Added bleaching mode
Bleaching Add-ON Flex-arm, bleaching attachment and new 15 minutes program for four sessions of standalone operation No programs to enable standalone operation New profit streams


Selecting FUSION Models

The FUSION models are optimized for clinicians’ use for GPs, Hygienists, and Orthodontists. Depending on the clinicians’ particular needs for functionality, performance and price, you can pick the best one suited for your everyday practice.

Applications • Restorations (resins/adhesives, bases, liners, sealants),
• Indirect
• Restorations (Veneers, Crowns, Inlays, Onlays)
• Dental Labs  (Abutment, Coping, Stump Shades, Temporaries, Surgical Guides, Relines, Duraline)• Restorations (resins/adhesives, bases, liners, sealants),
• Dental Labs  (Abutment, Coping, Stump Shades, Temporaries, Surgical Guides, Relines, Duraline)
Orthodontic Bonding
• Bracket (ceramic or metal)
• Band
• Tube
• Indirect
Functions • Backlit LCD with Multiple programs
• Two power levels
(Plasma high level for 5-sec fast cure, and Pulse-power for low heat/low shrinkage cure)
Simple one button • LCD with Multiple programs for direct or indirect bonding
• Two power levels (Plasma high level for 4-sec metal brackets bonding, and Pulsed Power for low heat bonding)
Tips 3mm, 9mm, 10mm, 13mm 10mm 10mm
Warranty 2-year 1-year 2-year
Power 2700 mW/cm2 1200 mW/cm 2700 mW/cm2

Curing Composite Hardness Comparisons

FUSION has been proven to provide the best composite hardness within the same curing time comparing with all other tested lights by Reality publishing’s independent ratings including Sapphire plasma light (a). In fact, to achieve the same hardness, FUSION uses half and mostly 1/4 of the time of other lights.

* Data courtesy of Reality Publishing – The Ratings for composite hardness (Knoop) tested at 2mm and results further validated from ADA studies (data available upon request).

** FUSION is trademarked by DentLight. Other brands are not registered brands of DentLight.

FUSION 4 Competitive Comparisons

 Model Fusion 4 Valo Cordless DEMI Plus Elipar S10
 Manufacturer DentLight Ultradent Kerr 3M Unitek
Max Light Intensity (mW/cm2) 2700 (focused) 3200 (collimated) 1330 (dispersed) 1200 (dispersed)
(always ready) (auto sleep) (auto sleep) (auto sleep)
Wavelength 420-490
(395-430 High Power Violet Optional)
395-480 450-470 430-480
Intuitive LCD Screen X X X
Tip Diameter (mm) 10 10 8 10
Smart Battery X X X
Solid Metal Construction X (plastic housing + fiber glass) X (metal housing +fiber glass)
Fan Noise X X X
Weight(oz) 3.9 6 6.4 8.8
Charging Stand X
Backup Corded Operation X X X
Length (mm) 200 220 235 270
Body Diameter (mm) 22 32 40 28
Modular X
Low Profile X X
360O Swivel Access X
Timer (s) 5, 10 (2700 mW/cm2) 5, 10, 15, 20 (1000mW/cm2) 5, 10, 20 5, 10, 15, 20
5,10,20, 60 (1300 mW/cm2) 1,2,3,4 (1400 mW/cm2)
3 (3200 mW/cm2 ) (2s delay for next cure)
Recharging Time (min) 90 180 150 90
Low Battery Audible Warning X X X
Dental Unit Charging √ (Optional) X X X
Durability +++++ +++++ ++ +++
Ease of Use/Service +++++ ++ +++ +++
Tacking Tip Included X X X
13mm and 9mm Tip Included X X X
Barrier Sleeves Included √ (100) √(50) √ (1) X
Upgradability X X X
(Chair-side bleaching, Caries-fracture detection, Adhesive Removal, Bleaching, Oral Cancer Screening)
Warranty 2 years 2 years 3 years 3 years
1-year battery 90 day battery 1-year battery 1-year battery

Tacking Crowns for: Fusion 4.0 Curing Light

Courtesy of S. Benjamin

Snap on tacking tip. Place the tip firmly with pressure on the center of the Cerec crown and tack for 1 second then stop. Wipe excess clean then switch to 9mm cap. Anchor light using the 9mm cap on top of the crown. Full cure for 10 seconds.
Nice contact, easy cleaning, and efficient bonding.


Built-in Programs for: Fusion 4.0 Curing Light

Built-in Oral Exam Program

Select 60 seconds timer for oral exam: a) Violet Light Head (optional) for cancer screening; b) White Light Head (optional) for caries and fracture detection.[/subtab]

Built-in Full Arch Teeth Whitening Function

Full-arch Bleaching Attachment – converting the light into a full–arch bleaching light.

Bleaching Upgrade Kit includes the Full-arch Bleaching Attachment, Mouth Guard and a Flex-arm that holds the Handpiece on the one side and clamps on the other side of the dental chair’s head rest. To operate in Bleaching Mode, press and hold ON/OFF Key for 3 seconds to select Bleaching Mode (15 minute Pulse Power Mode) then press ON/OFF to start.

Basic Timing for: Fusion 4.0 Curing Light

Recommended Cure Times (seconds) – High Power Mode

Manufacturer 3M Ivoclar Dentsply Kerr
Resin Brand Filtek Supreme Plus Heliomolar Tetric EvoCeram TPH3 XRV Herculite
Color/Shade A3E C6D A3 A2 A3 DY A3 YB
Cure Times Per layer 5 15 5 5 5 5 5 5
Final layer 10 Two 10 10 10 10 10 10 10

Space saver and no more battery worry




Mount chair-side charge holder on dental chair bar. Place light back to stand after use.


Light always charged full. No more battery worries and no need for counter space.

FUSION vs. Other Curing Lights

Beam Profiling of FUSION and Flashlite

Calibrating Curing Light Power

Effective use of dental curing lights: a guide for the dental practitioner


Why DentLight?

Effect Of Distance On Irradiance And Beam Homogeneity From Four LED Curing Units

Fusion 3.0

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Select a Location
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Saudi Arabia
American Dental Systems+49 (0) 8106 - 300 300
APOldent(482) 274-7091 x8
Saudi Arabia
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