Quote Originally Posted by .:Karma:. o.O
i acctually have a question related this time...my lights are now only 13 cfls 100 ina space prolly 2' by 2' by 4'...and they get hot but i dont think hot enough to burn something but i think they are gona burn my plants how far should my plants be from the light..????and will they burn with all the wattage in such a small space...
CFL's put out very little heat. The intensity of the light is lost very quickly after it leaves the bulb too. CFL's can be literally an inch or two away from the plants. The only problem with having the bulbs so close is allowing the leaves of the plant to touch the bulb. The bulb itself is fairly warm to the touch and will damage the foliage if it starts touching the bulb.

CFL = As close as you can get it.
HID = As close as you can get it without cooking the plants.

If you're running an HID system and don't have a thermometer... you're heading the right way for a smack bottom..

Cheers,
Bob.