I use glass tubes on all my lights now, that was an old grow it's going back different now. I'm even throwing in a twist. No Mh lights at all this time veg room gets only 1000 w Hortilux HPS bulbs then mix standard and Hortilux bulbs in Kool Tubs with plumbing. No hoods, no bat wings no refelective heat either. Just Mylar on the walls and roof, white plastic floor the light bounces everywhere. Blinds you when you walk out at night....lol...you can't see a thing it takes your eyes about a full minuet to re-focus in the night before you can walk with out killing your self....longer if you have a buzz.

HARDDON glass is fine and Kool tubes are the best way to go you can get the light with in inches of the plant so penetration is very deep.
Zandor Reviewed by Zandor on . Compact Fluorescent Light Discussion So here we go again pot fans. BlackJack Round 2. germinating 6 seeds directly in soil. For those that followed my last grow, enjoy. For those that are following it for the first time...Enjoy :) I'll keep ya updated as the weeks go by. Rating: 5