This is the mother box that I made from a porter-robe (clothes box).
I usually have 2 more CFL's in it but they are being used for side lighting at the moment,
but as you can see it puts out plenty of light as it is.
Unless you don't want it to eg: when the adults are flowering.
I managed to almost completely light proof it. At night with the lights out you can just see a little bit of light escaping.