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  • High CRI LED strip lights (over 93 CRI)
  • High CRI LED strip lights (over 93 CRI)
  • Image 3
  • High CRI LED strip lights (over 93 CRI)
  • High CRI LED strip lights (over 93 CRI)

UltraBright™ High CRI (93+) Series LED Strip Light

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Product Description

UltraBright™ High CRI Series (93+) LED Strip Light 


Not all light is created equal. One may assume just because the color temperature, wattage, and size is the same between two different bulbs they are equal, right? Not necessarily true. Let's discuss light quality.

The Color Rendering Index (CRI), also known by some as color accuracy, is a term of measurement of how natural the light given off by a source looks in comparison to the sun. Have you ever purchased a red towel or dress in the store and when you try it on at home or wear it outside in the sun it looks different? This is because the CRI is different between the two light sources. High CRI LEDs will show an objects true pure and vibrant color.

The highest CRI is 100 (like the sun). Most LED strip lights have a very low CRI (60 - 70). Our UltraBright™ High CRI LED strip lights have a minimum 93 CRI and have been measured up to 96 (all other Flexfire LEDs strip lights have a CRI of over 80).

Also, these natural white strips are extremely bright, emitting over 450 lumen per foot.

High CRI LED Strip Lighting

This photo demonstrates the difference between CRIs, given everything else being equal.

This product was initially designed to be used for professional photographers and the film industry. It is quickly becoming integrated in high end grocery product and produce displays, art galleries and museums, donut and pastry racks, in retail locations and dressing rooms as well as under residential cabinets and cupboards. Also, our lights meet the requirements for California Title 24 which requires high CRI in new lighting installations.  

Product features 

  • 5-year Warranty
  • cULus Listed
  • High CRI of CRI 90+
  • Fully Dimmable
  • 120° Beam Angle
  • Short LED pitch of 5/16" (8mm)
  • Highest Brightness - Up to 456 Lumen/ft (1,496/Meter)
  • Efficiency up to 88 lm/W
  • 36 LEDs / Foot (120 / Meter)
  • Thermal conductive 3M adhesive
  • Single BIN LED selection to ensure color consistency
  • Maximum Length in Series 16ft 5in (5 Meters)
  • Highest quality components and premium packaged 3020 LEDs

Available Colors CCTs

Application & Use

UltraBright™ Series LED strip lights are installed in a wide variety of applications including:

  • Photography lighting
  • Cinematography lighting
  • Product display lighting
  • Makeup counters and hair salons
  • Bathroom lighting
  • In-store displays
  • Produce displays
  • Art lighting
  • Cove lighting
  • Above cabinet lighting
  • Terrarium lighting
  • Related products

Aluminum Channels



Wireless Wall Dimmer | Wireless Desktop Dimmer | Lutron Diva


UB-C1 | UB-C2 | UB-C3

Power Supplies

Non Dimmable Driver

12V 120W DPS | 12V 150W Mean Well

Magnetic Dimmable Driver

12V 150W Zurik  


  • 5-year Warranty
  • cULus Listed
  • High CRI of 90+
  • Fully Dimmable
  • 120° Beam Angle
  • 12V DC Input (24V special order)
  • Highest Brightness - Up to 456 Lumen/ft (1,496/Meter)
  • Efficiency up to 88 lm/W
  • 36 LEDs / Foot (120 / Meter)
  • Thermal conductive adhesive
  • Short LED pitch of 5/16" (8mm)
  • Only 3/8" (10mm) strip width
  • Thick double layer 2oz copper PCB for excellent thermal management
  • Can be cut every 1" (25.4mm)
  • Single BIN LED selection to ensure color consistency (3-Step MacAdam)
  • Environmental Temperature -4°F to +104°F (-20°C to 40°C)
  • Maximum Length in Series 16ft 5in (5 Meters)
  • Highest quality premium packaged 3020 SMD LEDs 
Product no. SKU Color - CCT Watts / Foot (Meter) Lumen / Foot (Meter) Luminous efficacy (Lumens / watt) CRI Gamut Score Rg (Color Sat.) Relative Fidelity score (Rf)
UB-CRI-30K 3000k 5.8 W/ft /(19 W/m) 402 lm/ft (1319 lm/m) 69 93 98.5 90.2
UB-CRI-42K 4200K 5.8 W/ft /(19 W/m) 450 lm/ft (1476 lm/m) 87 93 97.2 88.8
UB-CRI-62K 6200k 5.8 W/ft /(19 W/m) 456 lm/ft (1497 lm/m) 88 94 97.4 88.5


Frequently Asked Questions

Q: What is the importance of UL Listed?

UL is an acronym for the Underwriters Laboratories. They are an independent product safety certification organization. A good summary used by UL is, "a not-for-profit organization dedicated to public safety." This means you can install these LEDs in commercial spaces, industrial applications, and in your home with peace of mind.

Q: What is the product warranty?

We’re so happy with the quality of our product, we offer a 5-year warranty on all of our LED strips to all of our clients. The warranty on power supplies ranges from 2 to 7 years which is model dependent.

Q: What is the lifespan of your strip lights?

Our lights have been rigorously tested and have an expected lifespan of 50,000 hours before dropping to 70% luminosity. This means that if you were to use your lights 12 hours a day, every day, the lights would be expected to last longer than 10 years. Even after that time has elapsed, the lights will maintain a brightness of 70%. Higher-output strips require a heat sink to reach the expected lifespan and beyond.

Q: What is color temperature?

The color of light can be quantified by referring to its color temperature. White light is measured in Kelvins (K). Most white lights fall in a spectrum between 1800K and 6200K. When getting close to 3000K, the light is noticeably warmer. On the other end of the spectrum, the lights have a blue-ish tint and cooler tone when nearing 6500K.

Q: Which color temperature should I choose?

Choosing the correct color temperature lights for your project is very important, and as important as the brightness you choose. Consider the look and feel you want your project to have. What other color lights will be present? What material and color are the materials you wish to light? We can help you choose!

Q:What are lumens (lm)?

This is a quantifiable amount of light produced by an LED strip or other light-producing product. This is one way we can measure light output.

Q: What is a 3020 SMD LED chip?

3020 SMD (Surface Mounted Diode) represents the size of the LED chips on the strip. A 3020 SMD chip measures at 3.0mm x 2.0mm. Click here for more information on LED chip sizes.

Q: Can I create a photography / video panel with your LED strips?

Yes. The UltraBright™ strips have been used in many photography and video lighting projects. The slim nature of the strip and the adhesive backing make it very easy to create your own custom light panel. Check out this video review of the UltraBright™ High CRI strip being used in a light panel.

Q: Which power source do you need for my project?

LED Strip Light Power Usage Calculator - Which power supply do I need?

Q: What do I need to turn on my lights?

To turn on LED strips, you will need to connect to a LED power supply. For connecting strips to the power supply we recommend soldering to make the strongest connections. Another option is to use our solderless connectors, which is a faster and easier way to install LED strips.

Q: How do I mount the lights?

The 3M double sided adhesive that is found on the back of the LED strip allows you to install them in most locations. Be sure to thoroughly clean the surface to remove all dust and particulate matter before mounting the strip. Certain surfaces may require you to take additional measures to secure the strips lights into place. Feel free to call us with any questions.

Q: Can I cut the strips myself?

Yes, LED strips are made to be cut to your desired length. Using sharp scissors, you can cut the strip every few inches (on a line that's marked after every third LED).

Q:Wow these are bright! What do I do if I want to dim my LED strip lights?

All LED strip lights are dimmable. The LED strips can be dimmed either through our dimmers [PWM dimming], or by a Lutron wall dimmer

To dim the lights you have two options:

  1. If you plan to dim your LED strips using a hardwired Lutron wall dimmer, you need a Zurik dimmable driver. This driver itself will be dimmed from the Lutron switch.

  2. If you do not plan to dim the lights from a hardwired wall dimmer and want to dim them with one of our dimmers, you will need a non-dimmable LED driver [Mean Well or Flexfire LEDs Brand]


Data Sheet 

High CRI Strip Light Data Sheet 

IES / LDT Files 

2400K IES/LDT | 2700K IES/LDT | 3000K  IES LDT | 4200K IES LDT | 6200K IES /  LDT 

Photometric reports 

2400K I 2700K | 3000K | 4200K | 6200K

Product Reviews

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Showing reviews 1-24 of 34 | Next

  1. Read, Make a Plan, Call & Call Again for an Assist

    Posted by Anonymous on 2nd Oct 2017

    After searching "best led strip lights". Flexfire popped up. Read their site. Decide what you think you might need. Think placement of lights and dimensions. Then, call Flexfire and let their expert folks help you to determine what you need for your project. If they can work me through my project I know they can assist and support you in yours. Mine was an antique 6' oak and glass display case that now gently sparkles with new, subtly placed lighting. I have a second lifting project in mind for a second case.

  2. RV Conversion Project

    Posted by Scott D. on 9th Jul 2017

    We are replacing the lighting in our 2003 Class A with the Flexfire UltraBright series. They go in fast and produce a lot of light. We even have a dimmer on one of the 4' bank of lights in the main space. We have made several purchases over the past year and will continue do so.

  3. Expensive but really good

    Posted by Anonymous on 23rd Jun 2017

    I finished two different projects and both look wonderful: under cabinets lights and head bed with full of toys the colors look completely real and natural. I made a big mistake since I installed a couple AC-DC power adapter I had at home and they both blew up after 4 hour of use.

  4. Very bright as I had wanted

    Posted by Anonymous on 14th May 2017

    Bought 11 ft for a project and was able to get it up in a day. Bought these because of the lumen output. Easy to break into shorter runs and solder together.

  5. under cabinet lighting

    Posted by Jennifer B. on 12th May 2017

    They look and work wonderfully. Love them.

  6. Bright and colourful.

    Posted by Anonymous on 4th May 2017

    Very bright LEDS. Nice Colours. Not inexpensive but if you need more accurate colours then go for it.

  7. Purchased a test strip

    Posted by Anonymous on 18th Apr 2017

    I appreciated the information resources on the Flexfire website. I bought a 1 foot strip of LEDs to test them for under cabinet lighting. Delivery was prompt, and the lighting was great so I'm going to buy the rest of the project parts from Flexfire.

  8. Superb LED's

    Posted by Anonymous on 8th Apr 2017

    Bought these to brighten jewelry display cases. They put out a very bright daylight color, extremely satisfied with the product. Their support is great also, once I had picked these LED’s I called them to confirm my choice. They immediately answered and conformed my choice. Once he mentioned they sell these to the Smithsonian I knew the choice was correct.

  9. Best LEDs on the Market

    Posted by Rob Coleman on 7th Apr 2017

    The light from these LED strips is fantastic. Bright, but not overwhelmingly so. We installed about 20' of lights in four locations above and below cabinets. The quality of light is perfect for our dark counters. I soldered the connecting wires to the LED light strips and mounted them on aluminum rails as a heat sink. The install took several hours, but in the end I am very satisfied with the result. I recommend these highly.

  10. High CRI LEDs

    Posted by David L. on 4th Apr 2017

    Fantastic LEDs, exactly as advertised. Tbere was a little mix up with my order, but they called me and took care of the issue immediately. I will be buying more for my next project. Can't beat their quality and customer service.

  11. Bright and Clear

    Posted by Geoffrey M. on 20th Mar 2017

    I bought a small section (approx. 1m) to test as a replacement for under-counter LED’s that were not bright enough. These were higher quality and the light is very bright and had much better color tone than the previous set. I will be purchasing these lights for the remainder of the project! Packaging, shipping and customer service was top-notch! Thanks.

  12. Airstream Remodel

    Posted by Anonymous on 17th Feb 2017

    Placed these lights underneath the upper cabinetry in the kitchen overhead the sink and rangetop. The light quality is superb, and the CRI helps rich colors glow.

  13. Easy to install

    Posted by Bert M. on 13th Feb 2017

    Works great! We are going to purchase more strips for added brightness. How many 8 foot strips can run on one transformer

  14. Undercabinet Lights

    Posted by Anonymous on 22nd Jan 2017

    Great information on website for picking right power supply/ driver for my project. Lights worked perfectly. Would definitely order from Flexfire again.

  15. Great Product

    Posted by Dustin F. on 10th Dec 2016

    Cart building and checkout was a breeze. Tech support provided help in determining my project objectives. I received the product promptly and I'm happy with how the lighting looks. Cost is very reasonable especially in light of the quality reported on their test sheets.

  16. Great Product = Great Results

    Posted by Ronald Maxseiner on 22nd Oct 2016

    Used this for undercabinet lighting in a kitchen redesign. They look great and the high CRI makes a noticeable difference. I will certainly try to add them to future home improvement projects.

  17. Great kitchen undercabinet lights

    Posted by Rylan on 19th Oct 2016

    I bought about 10 feet of these lights for a kitchen renovation project. I installed this light strip under my cabinets. I separately purchased an aluminium channel with a diffuser cover as a heat sink and diffuser (looks much more professional than keeping it exposed).

    The product has worked reliably for about 10 months and looks great. No failures or loss in brightness.

  18. undershelf lighting

    Posted by Don Philippbar on 16th Oct 2016

    I am a custom cabinetmaker and I used this product to mount inside shelf lip. Staff was helpful in my situation and saving me money. I will continue to them with my upcoming projects. Thanks

  19. Excellent product

    Posted by Keith Hill on 15th Oct 2016

    I purchased several 16' reels of the high CRI strips for food display projects. The color rendering and intensity are perfect.

  20. Very satisfied

    Posted by Daniel Adame on 12th Oct 2016

    I am using the LED lighting directly from a 12 volt DC battery source. I charge the 12 volt batteries with solar. The lighting is enough to light our entire living room. I will be purchasing more of this lighting. The first round was experimental.

  21. Just as described

    Posted by John Hodge on 3rd Oct 2016

    The guys at FlexfireLED are great. Having never worked with LED lights before I was a little unsure what LEDs to use and with what power supply. My goal was to have a very professional and finished looking stall so I used these lights inside a Klus aluminum profile. My under counter lighting looks amazing. These lights are super clear and very bright.

  22. Clear and Crisp

    Posted by Unknown on 5th Jul 2016

    These were used as under counter lights in my kitchen. I mounted them inside an Klus aluminum housing with a lens cover. Installation was very simple. The light is very bright, clear and crisp. These lights are much better then other strips I've bought in the past.

  23. Best on the market!

    Posted by Carl on 20th May 2016

    I installed a roll of natural white (4100k) in my kitchen. I used aluminum channel from Amazon. They are being fed by a 100 watt magna-something transformer and are controlled by a lutron maestro led/cfl dimmer. Almost flawless dimming besides a flash upon startup (dimmer's fault) as they ramp up to preset brightness. I soldered tails on the strips and used butt splices or wire nuts to make joints in between cabinets, shoved up into the blind 1/2" void from beneath. Sections on opposite sides of the room are joined with zip wire through the attic. I used a combo of series and parallel runs, whatever saved labor. The end result is a fantastic-looking, pro-quality installation. My secret? I'm a professional electrician. The ONLY advice I can give is to use WARM white, not natural or bright. The natural white is much bluer than a 2700k cree downlight, so I ended up with a more fluorescent color on the counter, but the color rendering, quality, and overall slick feel are superb. Plus, they are pricey, so the natural white stays for now. Oh well, I know now to steer customers in the warm direction. Best LED strips on the market!

  24. Very close approximation to natural light and more than enough brightness

    Posted by Unknown on 2nd Feb 2016

    We are using these for under cabinet task lighting. They are plenty bright at less than the halfway mark on the dimmer. IMO, the CR is virtually indistinguishable from daylight. The reds and purples that seem to get washed out with the low CRI lights look great. Hopefully they will have a long lifespan as they aren't being driven hard. I did mount them in a heat sink.

Showing reviews 1-24 of 34 | Next

Specifications for this Hybrid LED light kit

Product Hybrid Bright White/Warm White LED Strip Light
Color Temperature 2900K for Warm White and 6500K for Bright White
Lumen (Brightness) 3450 Lumens per reel
Quantity per unit You will receive a continuous 16ft section of lights
UL Listed? Yes UL Listed, Must be used with class 2 power transformer
Working Voltage 12v DC
Dimmability Fully Dimmable
Beam Angle 120 Degrees
Rigid or Flexible?

-Flexible installation up to 90 degrees. Used on curved surfaces

Power consumption 2.92 watts per foot
UV emission No
LED Count per reel 600 LEDs

2 years

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