I was definitely gonna LST and was definitely gonna get a cool tube.

Everywhere I've read says keep the lights as close a possible without burning. Is the 10-15 inches so the light can "spread"?

So is the bottom line advice: 400hps cooled is okay as long as I keep the plants tied down as much as I can with LST?

Thanks again for the advice.
da_natural Reviewed by da_natural on . Cab Height and Lighting I have a cabinet that is 3' x 4' x 2' (height, length, depth). I was reading someone's grow log and I saw a mention of the cabinet not being tall enough for a 400 HPS. I was/am going to buy a 400 hps, but wanted to throw it out there to see if my cab is tall enough? Thanks Rating: 5