I just purchased one of the Compact lfourescent lights that are discussed on that link from buddha, this thing is sooo bright that when I first saw it I thought it was a MH bulb, and where it is warmer than regular Floro's it is still cool enough to put within 5-6 cm from the top of plants. It was pretty cheap too, $125 usd and it is 125W/10,000 lumens.

http://www.wormsway.com/detail.asp?sku=CFSD110#
here is a link to where I bought it
lordsoth666 Reviewed by lordsoth666 on . fluorescent lighting or left in the dark are fluorescent lights really enuf? with just reg bulbs'or should there be prisms or something? Rating: 5