Okay, so i just set up my 400 w , and i realized my light timer that i was using for my cfl doens't have a ground wire, therefore i cannot hook it up, and wont be able to make it to the store tonight and have to go to work at night later. So is it better to leave the lights off for like 10 hours tonight, and buy one in the morning, or to leave it on all night?? Any ideas?