However, the CT rating does not reliably measure color from fluorescent and LED lights. Another system for measuring light color for these sources is called correlated color temperature (CCT).

Boulder streetlights will soon be converted to LEDs, and the city is asking for community feedback on their preferred color temperature.

Q: I have a client with 4000K LED tape light on top of his cabinets. I need to make it look like 2700K, but I have never dealt with gels or colored lenses. What would you recommend and how would I ...