riseup said:Lights
I have six 30 watt 6400K CFLs which I ordered from ebay for cheap. I will replace some of the bulbs with a more red spectrum, when flowering comes, but right now I think I'll do fine with a blue spectrum. I still have to make a reflector somehow, I'll figure that out soon enough.
Ventilation
Currently I have only one fan installed and I have to drill some intake holes, but I'll take care of that soon enough. I have one 12V computer fan attached to the outtake hole and it seems like I'll have to attach one fan to cool the bulbs (they do get pretty hot for CFLs) and I'll have another fan blowing air at the plants, for stronger stems, as I have read.
If your going cfl's you wud be much better getting a ECOLITE (Envirolite) i've got good results from them , they are low energy which helps keep the electric bills down and you will have " NO " Heat issuses to worry about freely available in the UK ... i got the eco lite instead of the envirolite as grow shops said too many enviros were coming back with faults ... have a look at what you can get with eco lite
Envirolites
My ECO lites at work