which means that replacing the light entirely can be a big project requiring completely restructuring the existing ceiling.

So he also took this opportunity to change the color temperature of the light in his room. Unfortunately it wasn’t as simple as just replacing the fluorescent with the LEDs — no, that would be ...

A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the ...