I can't control the heat in my apartment and it is usually closer to 80 in here, even in the winter. My house is too far away to be able to check regularly so I have to start my seeds later and outside after the last frosts. Even then I have to bring them in occasionally for possible frosts almost into June. I have had some luck starting seeds directly on my light stand but it is hot and the germination rate hasn't been good. Out of 20 seeds I may get 1/4 to 1/2 germination. I do have a fan on with the patio door open but it still doesn't cool it down enough. It also seems to take forever to get any sprouts ie: asiatics 3-4 weeks!