it works perfectly fine. mine had just clear plastic tarp on it. i think it was like 6 mil thick. (dont ask me what a "mil" is. i just know i doesnt mean millimeter) anyways... its basically just like the plastic sheet stuff painters put down before they paint so it doesnt get everywhere..
edit: oh yeah, the picture in that one link does look pretty dark. i dont know whats up with that. but i see where your question comes from now. dont worry. its plenty bright
Cool. I think this is the one! I'm probably going to put in a growlight or two in because the area doesn't bet quite as much light as I'd like it to...
Thank you so much guys! I'll post pictures as I go.