D50 5000K T8 LED Tube Lights for Color Matching (ISO3664:2000)
D50 5000K T8 LED Tube Lights for Color Matching (ISO3664:2000)

D50 5000K T8 LED Tube Lights for Color Matching (ISO3664:2000)

4024.50.4P  - In Stock

Regular price $149.00 Sale

  • D50 calibrated (5000K) T8 LED tube light for color-critical applications in graphic arts, printing and industrial applications
  • ISO3664:2000 compliant
  • T8 style (1" diameter), 4-ft length
  • Replaces 32W 4-ft T8 fluorescent tube lights using just 18W
  • TriplePlay™ compatibility technology automatically detects your fixture type. Works with existing T8 fixtures and ballasts (no rewiring of fixture) or ballast bypass (rewiring) - your choice.
  • High CRI: 95 (Ra), R9 > 90
  • Input voltage: 120, 208, 240 or 277 V AC
  • 18 Watt power consumption
  • 1800 lumens - equivalent to a 32W fluorescent bulb
  • Not dimmable
  • 10,000 hours lifetime (ISO3664:2000 conformance), 5 year warranty
  • Available in packs of 4 tubes or 24 tubes
  • Free standard shipping to USA addresses
  • In stock
  • See our delivery policy here

Product Overview

Visually demanding applications require accurate and consistent lighting environments in order to ensure optimal performance in color judgment. Waveform Lighting's D50 5000K T8 LED tube is an ISO3664:2000 compliant lamp that is designed for color matching applications where light quality is of paramount importance.

 Learn more about D50 here.


Is it compatible with my fixture?

Our T8 LED tube is designed to directly replace 4-ft T8 fluorescent lamps, and can be directly installed into an existing 4-ft fluorescent fixture without having to open the fixture housing and rewiring the connections.

The best way to determine if these lamps will fit and operate in your current fixture is to confirm the specifications of the fluorescent lamp that is currently installed in your fixture. Below are the basic requirements for compatibility:

  • 4-ft (48") in length
  • T8 style tube (1" tube diameter)

You can also look for a model number or designator on the fluorescent tube. The most common designation is F32T8, which is a compatible fluorescent tube specification.

For most customers, we recommend this approach for ease of installation. For further information and instructions on rewiring for ballast bypass, please refer to our install guide / user manual.

Please contact us with any further or specific questions about compatibility.

Product Downloads

Specification sheet download   Specification Sheet 

User Manual download   User Manual

Compatible Ballast sheet download   Compatible Ballast List 

Specification sheet download  Photometric Report

Waveform Lighting 100% Quality and Satisfaction Guarantee

If you're not 100% satisfied with the performance, color or quality of your product, we'll work with you to make it right.

Simply contact us within 30 calendar days after delivery and we'll send a replacement at no additional charge, or offer you a full refund.

Customer Reviews

Based on 11 reviews
Angela Engel
Very Happy, good light and no buzzing

Upgraded our Philips bulbs which were all buzzing. The lighting is better and thank goodness there is no buzz it was driving my bonkers.

Tooth Doc
Fantastic Product!

Brightens the dental office and is exactly what is needed for demanding color match cases. Will definitely be ordering more!

Great product, Great customer service

My wife noticed a discernable difference in using Waveform's lighting in her sewing room when it comes to color matching. Unfortunately the delivery company was a bit rough in the handling of the first package we received which resulted in two of the four light tubes being damaged. Customer service at Waveform Lighting handled it right away and sent us replacements immediately. Great people to deal with!

Thomas B
Great for product finish inspection

My company manufactures high end loudspeakers. We use these D50 bulbs in our visual inspection stations. They work great for color matching as well as identifying scratches and defects.

Paul Vogelsang
Billboard Color Viewing Area

Installed the bulbs in a large 50' overhead viewing area to evaluate color for billboard printing. Bulbs are a near-perfect D50. Way more consistent and longer-lasting than the GTI bulbs used previously. My clients are extremely picky theatrical movie companies and consumer products companies. Our clients love our color viewing setup.

Great Lights!

I have purchased D50 5000K T8 LED Tube Lights and installed them in my office and now the light is great! I can finally see the colors with great detail and intensity. Couldn't be much happier, I'll be buying more from Waveform Lighting in the future for sure!

Michael Wilder
Bright, quiet and color rich

I have now installed 16 Waveform color matching tubes in my 16-foot light array for my print viewing wall. I was using Chroma 50 bulbs for the last 40 years because that was the best option until now. I removed the ballasts and wired them at one end.

The results compared to the GE Chroma 50 bulbs in the same fixture is that the Waveform tubes output approximately 50 % more light measured at the wall with a Minolta digital incident exposure meter (0.5 EV greater). This is even though the rated lumens of the LED bulbs is 1800 and the Chroma 50 bulbs is 2250. The color appears a little cooler, but was obvious only after I replaced the bulbs on the left side of the array and compared the light on the wall to the right side.

This was a pleasant surprise and I am happy with the setup. Michael

Nicole Bartholow
Great for Hair Color

Bought these for our salons. Much brighter and more balanced than the previous lights.

Peter Brenner
A true winner in color matching accuracy

Met our color critical needs for accurate color matching to original artworks
Loved the no ballast required.


I have been printing B&W and color photographs for decades. These D50 tubes are the best light source I have ever used. The spectrum is perfect when viewing a metamerism checker. I will be buying more.