What size is your LED and what area are you covering with it? My new tent is 1.5m x 1.5 base and my current light wont cut the mustard. im trying to decide if i buy more T5 or swap over to LED.
OK. Grow tent is 1200 x 600 x 1200 high.
Lights are 1 x 450w viparspectra, 2 x 150w ufos (ebay cheapies). I also added 2 x 4500k 10w led bulbs.
There is a duct fan at the top sucking the air out, with an inlet diagonally opposite but at the bottom, to get fresh air in there.
There are 2 5w fans (run off usb power) blowing on the plants. One of these seems to have dropped off in the amount that it is blowing, so I have bought a 240v fan (a bit larger than the usb ones) to replace them once they pack it in.
I also keep the propagation domes in the tent, I seem to have a better strike rate in there than outside sitting on a heat mat.