I have had fine results with temps at 85-88F and humidity at 44-52%.

Is your friend running an extraction fan or just oscilating fans?
An extraction fan can lower your temps by 10-15F.
blink_inc Reviewed by blink_inc on . Room Temps So my friend hooked up everything in his room for a trial run for a couple hours before he cracks the seeds, and the temps were 78° in the room and about 86° under the hood with only 2 out of 3 fans running. The hood was also 20" from the tubs, so the bulb was probably 15". It is a 1KW bulb. Humidity was 61%-67% for the two hours. I know its supposed to be 70-80° and 50-60%, but are these temps and humidity levels too high? He is starting with 4 150W CFLs to veg and then only using Rating: 5