Help help

i have a 6 inch fan blowing in, 4 inch fan sucking out, still too hot (90degrees) any suggestions?

90 aint that bad in the summer tbh, is a little hot, if your running a hps light maybe try a fan pointing straight @ the light, I put an attachable fan at the end of my reflector blowing down the bulb, keeps the reflector cool and lowers the temps

Raise your lights, get a small oscillating fan that blows on your light or buy a cool tube. Easiest fix available.

put the 6inch fan as exhaust and 4 as intake

fan on bulb went down to 87, going to change fans now.