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  • UltraBright™ Design Series White LED strip light reels
  • UltraBright™ Design Series White LED strip light reels
  • UltraBright™ white LED strip backlighting
  • UltraBright™ Natural white hotel cove LED strip lighting
  • UltraBright™ white bar LED strip lighting
  • UltraBright™ white LED strip lighting
  • UltraBright™ white LED strip lighting
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  • UltraBright™ white LED strip lighting
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  • Hotel cove lighting LED example
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  • Hotel cove lighting LED example
  • Hotel cove lighting LED example

UltraBright™ Design Series LED Strip Light

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Product Description

UltraBright™ Design Series LED Strip Light

Hotel cove lighting LED exampleIntroduction:

UltraBright™ Design Series: Powered by belief. True evolution commences as we start to open our minds to new possibilities, new ideas that allow us to step away from the confines of tradition. Our Design series has been developed to allow people to step away from the more traditional light sources when designing their projects and enter a world of new possibilities in design. The high brightness of the strips allow for the creation of simplistic task lighting whilst maintaining the properties of a standard strip light. We balanced a high brightness, high CRI (80+), and low energy usage to create a truly beautiful and efficient product. You need to see if to believe it.

Top features and benefits:

- UltraBright™ Design Series natural white LED strips are fully dimmable, and are a great selection for task lighting
- They're UL Listed, which means they have been independently verified as safe for use within home and business
- They produce 6,600 lumens per reel / 402 lumens per foot  

Available Colors CCTs

Application & Use:

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

  • Under cabinet task lighting
  • Linear lighting
  • Under kickboards
  • Display / jewelry case lighting
  • Picture backlighting
  • Bar and club lighting
  • Architectural lighting
  • Terrariums / indoor garden lighting
  • Above cabinet lighting
  • Under counter lighting
  • Hotel lobbies
  • Cove lighting
  • Related products

Aluminum Channels

MICRO Alu | PDS4 Extrusion45 Alu Extrusion


Touch Series Single ColorMulti Zone Single Color| Tiny Dimmer | Wireless Wall Dimmer | Lutron Diva


UB-C1 | UB-C2 | UB-C3

Power Supplies

Non Dimmable Driver

12V 96W DPS| 12V 100W Mean Well

Magnetic Dimmable Driver

12V 100W Zurik


  • 5-year Warranty
  • UL Listed
  • High CRI of 80+
  • Fully Dimmable
  • 120° Beam Angle
  • 12V DC Input 
  • Highest Brightness - Up to 469 Lumen/ft (1,539/Meter)
  • Efficiency up to 107 lm/W
  • 36 LEDs / Foot (120 / Meter)
  • Thermally Resistant 3M VHB 4930 adhesive for long lasting bond
  • 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 5 in (5 Meters)
  • Highest quality premium packaged 3014 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-DS-24K 2400K 4.4 W/ft /(14W/m) 340 lm/ft (1,115/m) 77 82 Coming Soon Coming Soon
UB-DS-27K 2700k 4.4 W/ft /(14W/m) 344 lm/ft (1,129/m) 78 82 92.6 82.3
UB-DS-30K 3000k 4.4 W/ft /(14W/m) 375 Lm/ft (1,230/m) 85 85 95.5 82.5
UB-DS-42K 4200K 4.4 W/ft /(14W/m) 463 Lm/ft (1,517/m) 94 83 93.4 82.3
UB-DS-62K 6200k 4.4 W/ft /(14W/m) 469 Lm/ft (1,539/m) 107 83 94.7 81


Frequently Asked Questions:

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 passing below 3000K, the light is noticeably warmer. On the other end of the spectrum, the lights have a blue-ish tint and cooler tone when passing over 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 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 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: "I am looking for the brightest possible strip lights for my kitchen. I have a kitchen with very little natural light and I am looking to make it so it has enough light to light the kitchen. Would you say that the UltraBright™ Design series will do the trick?" 

The UltraBright™ series are some of the brightest strip lights on the market. The majority of clients use these lights for task and principal lighting. We have used these lights in numerous different locations with great results. Different series of strips within the UltraBright brand like the Architectural, Design, Industrial, and high CRI series will have different applications in your kitchen depending on your requirements. Please contact our design team for further assistance.

Q: Is there an outdoor option?

Yes, we do carry a water resistant Outdoor UltraBright™ Design Series LED strip lights in 30K, 42K and 62K.

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: What is the maximum run length of the UltraBright™ lights before voltage drop? 

Maximum continuous string of lighting in series: 16ft 5in (5m) Longer connections are possible in parallel with the correct power unit.  What is voltage drop?

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

LED Strip Light Power Usage Calculator 

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:

  • 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.
  • 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 Sheets 

Design Series 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 83 | Next

  1. Helpful

    Posted by Keith K. on 10th Dec 2017

    They were very helpful in figuring out what I needed

  2. Great buy

    Posted by Anonymous on 1st Dec 2017

    Excellent quality at a reasonable price

  3. Only place to go for LEDs and LED projects

    Posted by Robin F. on 1st Dec 2017

    It is a pleasure to not only find the best quality merchandise, but to also find a staff that is a joy to work with. I have worked with 4 different members and each one is "top-quality". Not only do they have great recommendations and ideas, they eagerly accept ides and recommendations form customers. I will not look anywhere else.

  4. Quality products - good value

    Posted by Anonymous on 23rd Oct 2017

    I installed these below cabinet to serve as task lighting and they are perfect for the job. I installed diffusers over the light and they are still plenty bright. I also have them on a dimmer when the occasion calls for accent lighting. I found the 3K color to be just right for my kitchen - warm enough without being too yellow. I find light in the 5k range to be a little too harsh for my taste.

  5. Best led strip!

    Posted by Ryan H. on 6th Oct 2017

    These leds are bright! Great product!

  6. Great Light

    Posted by Anonymous on 24th Sep 2017

    Really easy system to install and the quality of light is great.

  7. Amazing

    Posted by Andrew S. on 18th Sep 2017

    Great product great service

  8. Work great!

    Posted by Anonymous on 15th Sep 2017

    I've purchased from Flexfire LED's several times and I keep coming back when working on new projects. They have a great variety of LED supplies for any project.

  9. Great lights

    Posted by Anonymous on 6th Sep 2017

    The customer service was incredibly helpful on putting together a plan for ordering the correct parts. The lights are very bright and are perfect for our project.

  10. Great products, competent help

    Posted by Ken M. on 5th Sep 2017

    I was relieved to find a site to kept up with LED technology where I could create a custom design. It was not about the lowest price when permanently installing the lights. Thanks, too, patient and understanding customer service. Who would provide technical help on Amazon?

  11. Crazy bright lights

    Posted by Thanh L. on 2nd Sep 2017

    I used the ultra bright series LED strips to add lighting to my wife's vanity mirror. They look awesome and she doesn't even need turn them all the way up. I would definitely recommend this brand!

  12. Dependable Bright Light!

    Posted by Chris O. on 16th Aug 2017

    I love selling the UltraBright Design Series LED Strip in the KLUS extrusions for under-cabinet lighting in the Kitchens we remodel. Coupled with a Zurik magnetic transformer sized for the job and a wall dimmer switch... there hasn't been a customer yet that wasn't THRILLED. Flexfire offers dependable customer service and products to the custom light market.

  13. I like them so far...

    Posted by Anonymous on 26th Jun 2017

    I am still working on my under counter lighting project. I choose FlexFireLEDs because of their excellent customer service and help with the project. I am a homeowner and I am doing this my self. I like the connectors they sell which make the project easy.

  14. the right light for the application

    Posted by Anonymous on 19th Jun 2017

    I was given advise on the components required and purchased them. they arrived quickly and worked great.

  15. Sign lights

    Posted by Anonymous on 18th Jun 2017

    This is my third kit from flex fire, and as usual they are awesome. Great customer service and support.

  16. Great results

    Posted by Anonymous on 21st May 2017

    Designing and buying was a breezed using the website. Everything worked out just as planned. Great lights

  17. Great Website, Support, and Product

    Posted by Walter C. on 1st May 2017

    Wanted to install multiple kitchen undercounter lights. Got lots of great product and design info from the web site. Called the customer support line to help order a custom kit. They helped me select lights, dimmer, transformer, and mounting channels/lenses that worked well together. I would have ordered the wrong light series without their help. Everything installed smoothly. Looks and works great.

  18. Great service!

    Posted by Anonymous on 24th Apr 2017

    I really like the products Flexfire carries. The strips are UL listed and have always worked flawlessly with the controls. They make ordering easy and ship out fast.

  19. Wonderful LED light package

    Posted by Anonymous on 14th Mar 2017

    Have bought several strips of led lights for different applications. All worked as advertised. I am very pleased with the results.

  20. LED Strip is great

    Posted by Christopher K. on 30th Jan 2017

    I had no problems soldering the wire to these strips. They do seem heavier duty, a bit stiffer than the other strip I bought at HD(and returned). Love how many LEDs there are per foot, and the fact that I could get 2700K color is awesome!

  21. LED's for my RV

    Posted by Anonymous on 25th Jan 2017

    We have a 2002 RV and I have replaced all the florescent lights with the UltraBright Design Series LED Strip Light. I have found that to I only need one strip of 15 " to replace two 18" florescent tubes. I have more light, a brighter light and my electric draw has gone from 3.5 amps per fixture to 0.5 amps per fixture. With the quick connect wiring installation was a snap.

  22. Under cabinet Lighting

    Posted by Anonymous on 18th Jan 2017

    I bought a couple sample strips of the Ultrabright led strips to determine the color i wanted. I previously purchased the hybrid white lights but they were not as bright as I would like. These are perfect. I settled on the 3000K over the 4200K as i like the warmer light. I have been very happy with the customer support from flexfire. Even though you can find cheaper led strips online these are a higher quality and the tech support makes it worth it.

  23. Under the cabinet UltraBright Design series

    Posted by Gary Dillon on 15th Oct 2016

    I had no experience using LED strip lighting when I remodeled my kitchen. The consultant at FlexFireLeds was a great help selecting the appropriate Series and color of LED strip. My design consisted of two separate lighting areas. The consultant advised my as to what size transformers to use and what dimmer to use. The project was pretty simple to install and worked perfectly the first time. A few tips for installation. Install a switched outlet and the transformer in the top end cabinet and run the wires in the wall behind the cabinet and out under the bottom of the cabinet. I mounted the LES strip about two inches behind the molding at the bottom front of the cabinet for the best work lighting and it worked out great. The series I chose was more than bright enough and the dimmers create a warm ambience at lower light settings. The LED strip really shows off the granite counters. FlexFireLEDS are the all around best.

  24. Great product. Great service.knowledgeable and

    Posted by Timothy Dale on 4th Oct 2016

    Great product. Great service.knowledgeable and helpful staff plus fast free shipping. What more could you want

Showing reviews 1-24 of 83 | 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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