Quote Originally Posted by growdatpurp
so should i get a 150w hps for 2 plants? or should i just get alot of cfls? and i get cfls what should the light spectrum be on it? 5500k?
THAT is a hard question to answer, and is very subjective. No right or wrong answer.

HPS is the "tried & true" light of choice. It works. Very, very well. It's only downside: HEAT. If you have $$, and great ventilation, by all means go HPS. If you have even more money, use conversion bulbs and do MH daylight bulb veg & HPS bulb bud.

CFT is the newcomer on the scene, and has only been available in the appropriate spectra and wattages over the past 2 years or so. I've seen more and more people switch to CFTs for small, enclosed spaces, and for their veg rooms. Many people are now starting to bud w/CFTs. Yields under CFT are less than yields under HPS, but still quite respectable.

CFTs become counterproductive when they're more than a foot from your plant.