okay i plugged it directly into the wall, and it's not ~90.... and more than 30 seconds has past by lol. idk if you were exaggerating, but yeah... at least i know its getting warmer! i'm going to wire the 2nd shelf via solder.... is that safe?
also: it doesn't feel anywhere near 90... i'll check it in like 10 minutes... check back at 8 please =]