/diy/ - Do It Yourself

Have anyone here used graphite sheets? I’m thinking on sticking reflective foil paper on one, cutting it into shape and putting some leds on it so it will help spreading the heat. The leds probably wouldn’t generate much heat anyway but they will be in a closed space made of plastic so I guess I could at least help a little with heat transfer but I have never used them. Would it be better to use thin or thick ones? Not exactly electronics but I guess you guys are the more likely to have dealt with this kind of stuff.