I got a 68 in there now and 5 26 watt and also a led panel coming tomorrow for side lighting, aside from that Ive been planning on ordering one more 150 watt clf but the damn 68 watt was shuttin off on the long skinny cord i had to switch sides and it works fine so i dont think ill be usin a 150 ill prob go with 5 40 watts the 2600 lumes ones see what the heat is and mabey add another fan, but im not sure its been kinda a go as i need thing, my plants are doin really good but i think i just about killed my female that i was about to start flowering now it's back to square 1. but i got alot of babies that look nice I wish i could save my female, she made me so proud.