Quote Originally Posted by st0n3r
what about those eco-friendly lights that give out double the energy than the actual bulb, would they be more ideal for growin the plants with as i'm guessing it will use less electric?
There's no such thing - energy in cannot be greater than energy out. What you mean are the sort of bulbs that emit more light per unit of electrical energy consumed. Fluorescent bulbs, for instance, are about 3 times more efficient at producing light than incandescent lamps. HPS lights are already pretty efficient, as are all HID lamps. None of this changes the total power draw as listed on the bulb, though, and that's the figure you are concerned with here. If you are using, say 100 watts of incandescent lights and you switch to 100 watts of fluorescent lighting, you'll STILL be consuming 100 watts of power, even though you will be creating more light.