Hey baskarz, I've been checking out your grow, and that is really sweet!
I'm putting together my first cab as we speak, and I'm very interested in that light bar you have set up, to raise and lower.
My question to you and the vets that are following is about the horizontal orientation of your lamps. I'm under the impression that the light waves are conducted more effectively to the target (plant) from a vertical position. I read it in a post or journal or somewhere (which doesn't necessarily make it true). In the featured thread pics, the grower had them oriented horizontaly, with little home made reflectors, over the tops of the lamps. It was pointed out that that particular light setup was less efficent than it could be, by the lamps being horizontal and the reflectors actually absorb and distort the light waves, instead of reflect them back down like one would think. There's a name for this phenomenon, but I can't remember what it is.
Supposedly, the most efficient is with the lamp oriented vertical and the reflector at the top.
Anyone?