How many LED light setups should i buy to grow around 8 plants. Theres no heat that comes off the lights correct? i know there expensive, but it might be my only choice, the place i am growing them is getting alot hotter then i had expected. it almost got over 100F today but i opened the vents better and set up 2 fans to move the air and blow it out the vent. unless anyone can think of a better choice of lighting besides LED's please by all means say so, but i think im gonna end up going with LED, and also i was wondering if anyone has a few companys to choose from, any feedback on anyone whos using or has used LED lights.