7800k? is it useful?

i have a lil 18in tube from way back before i got my lights and its 7800 kelvin. is it useful at all? it just sits in the back unplugged

7800 kelvin.....is that like watts?

if its the light spectrum....no

if its the light intensity...yea

its the spectrum. i thought it would be way too high on the k scale to use. i just wanted to know if it was worth plugging in