A triphosphor tube is a fluorescent light tube that uses a phosphor coating that is composed of 3 different color phosphors.
This allows the fluorescent light bulb to produce a more accurate and vibrant light color when compared to other traditional fluorescent tubes.
This often results in an improved color rendering and better light quality.
Essentially the triphosphor tube is a fluorescent tube that has a more complex phosphor mixture for better color rendition.
A fluorescent lamp tube is filled with a mix of xenon, argon, krypton, mercury vapor and neon.
The pressure in the fluorescent tube is around 0.3 percent atmospheric pressure.
Copper doped zinc sulfide (ZnS:Cu) is the most common phosphor used for fluorescent lights and yields blue-green light.
Copper and magnesium doped zinc sulfide (ZnS:Cu,Mg) yields yellow-orange light.