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D50 5000K A19 LED Bulb for Color Matching (ISO3664:2000)

D50 5000K A19 LED Bulb for Color Matching (ISO3664:2000)

PART NUMBER 4005C.50 | In stock

Regular price $18.00 USD
Regular price Sale price $18.00 USD
Sale Sold out
  • D50 calibrated (5000K) A19 LED bulb light for color-critical applications in graphic arts, printing and industrial applications
  • ISO3664:2000 compliant
  • High CRI: 95 (Ra), R9 > 80
  • Compatible with 90 - 240 V AC, 50-60 Hz
  • Conveniently screws into any standard Edison-screw socket (E26 or E27)
  • 10 Watt power consumption
  • 800+ lumens - equivalent to a 60W incandescent bulb
  • Not Dimmable
  • 25,000 hours lifetime, 3 year warranty
  • See our delivery policy here
  • In stock and ships in 1-2 business days

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 A19 LED bulb 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.

Recommended Use

The A19 form factor is compatible with virtually all lamps and fixtures designed around for a traditional light bulb. With a power consumption of only 10W, heat emission is very minimal.


Product Downloads

Specification sheet download Specification Sheet 

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.

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Customer Reviews

Based on 25 reviews
Matthew Barry
D50 proved far superior in comparison with a bulb having the same CRI, lumens and temperature.

When I compare The D50 (95 CRI, 60w, 800 Lumens, 5000k) bulb against the Philips Ultra Definition (CRI 95, 60w, 800 lumens, 5000k) bulb, both showing in a two-bulb light fixture, the difference is stark. On paper, they should be the same brightness in lumens, the same CRI value, and the same temperature, but in reality, the D50 is very noticeably brighter and shows better color on the art hanging beneath the light fixture. I had doubts about the higher expense, but I want to assure you it is worth it. The D50 is a far superior product and well worth the expense. When I made the comparison, I was shocked at how much better the D50 was. The bulb is not dimmable because it would adversely affect the color-matching feature of the bulb.

Eugenio Intini
Great product

5 stars

Jim Haas
What I was looking for --

I have been having trouble checking my black and white images for consistent printing results. Not any more this light works perfectly and just what I needed!


Great high CRI bulb that makes colors pop.

These bulbs are now installed in most of my house, supplanting cheaper and lower CRI bulbs. It is so pleasant to flip them on every evening...I didn't realize how lifeless the other bulbs made everything look. Colors are now distinct and accurate. Great upgrade!

Alberto P.
Perfect bulb!

I'm a photographer and I have a Fine Art prints laboratory. These lights are absolutely perfect for the quality print check and the whole illumination of the studio.