I have some ideas, but do you have a picture of the cabinet ? or the brand?
What material is it made out of even?

Without knowing the only thing I could think of is fire walling it if it's wood. That would at least resist/retard the fire assuming there was one.

But it's hard to say if it'd be too hot, depends on what type of material (paper/metal/wood/plastic) it is.
Dyranty Reviewed by Dyranty on . light and ventilation setup, is it safe? Im doing a cabinet grow this time around, and that means I need to get a smaller light and worry about ventilation. My cabinet has a shelf on top that I was thinking of hooking to chains (it has screws underneath but id rather be safe) so its adjustable. What I was thinking about doing, instead of buying or building a nice air cooled reflector for a 250/400w hps, is cutting a hole in the board for the light to shine through, put a peice of lexan glass over the hole (keep heat out) and then Rating: 5