Traffic Light Chromacity
85% Less Energy Than Incandescents. Save With Lower Replacement Costs.
The CIE Chromacity Diagram — released in 1931 — is based
on about two dozen people matching a projected area of color
(covering about 2 degrees of their field of vision) with a color
they mixed themselves from red, green and blue light sources.
September 21, 2018 10:51:57 PM