Hello gunslinger, I am using four kinds of light, in the big box I have a 400w HPS that's about 16" above tallest plant, I have the reflective barrier on sides so it like a giant hood, I let them grow into it. I can adjust all my boxes by raising or lower the plant, not the light, because of the different sizes of the plants.
I build the new box to be able to get even light on the littler plant, the Fluorescent fixtures stair step following the roof pitch so back of three lights is 3 to 4 inches above the 1st I can get a plant 2ft tall including can. The bulbs are t-12 plant and aquarium, 40w 1600 lumens, just what they had hardware store and couple from home depot. I hear ppl talking about t-5's, I don't know the different between the two. I got them my first grow and grew 5 1/2 tall plant including bucket. They work, I try to keep the plants 2or3 inches from light, that calls for different sized props. I have 240w actual use in there.
In the box i am finishing some hermi. away from everything else, I have 3 cfl's . One is a regular cfl 28w equal a 100w. The other two are cfl lamp or spot light they are cool because they are more powerful then reg. cfl and they have a warm spectrum 23w, 1300 lumens. I have a total of 74w in there. The regular one can be 2to 4 inches and the spot lights about 5or6 inches. The power co. out was selling them for 99 cent so brought 7 of them without even thinking about growing, that cheap.lol
The cardboard box to be able to give 6 more hours of light, which works great by the way, I have spot light with a reflector is as high as I can get it to stretch as much as possible for 12/12.
Hopefully that will explain my lighting methods. I had all stuff for newer box sitting around.. later bro..rw


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