i compromised and lowered the light to 4 inches, it's the closet I dare go, theres too much heat coming from the bulbs, i already fry-ed everything, I'm not going there again.
have lights on 24 hours, have to to maintain temp, I'm in an old drafty farm house I get for free with my job. It costs to much to keep the heat cranked up to keep a 70 degree temp in a closet, so the lights are maintaining the temp.
I have foil around the lights and down to the plants, all light is on the plants, almost none get out, except through the few vent holes on the light I built.
I'm happy so far, I see much improvement with the cfls.
I read when i got the hps hydrolux it has the smallest node growth of all lights, yeah thats because it sucks as a veg light.
they don't tell you that.
I might add a few more cfls to see what happens, I'm gonna hold off on the metal bulb, i see no real need for it now.
by the way, i bought a 42 watt cfl at wallmart to see how it works.
i walked around my house for an hour looking for a water leak, i could hear it plain as day, turns out it was my new made in china 42 watt light sizzling, it burst into flames as I opened the closet.
so be wary of them things.
things look good so far as far as the plants go, I'm happy with the progress the cfls are making and at a 50% elec. reduction. no heat and no need for the light venting fan.
so i shaved about 400 watts off my usage until i bud.