T-8

[boaz]

is it pretty safe that t-8's suck just as bad as the t-12s and my best bang for my buck is to go with cfls? I have a three in one meter and it confirmed this but also said that the cfl is brighter then my single t-5 h/o.

I was just wondering was the T5 a 2 ft or 4 ft bulb? I'm no expert but I seem to recall that the 4 fts. are much more efficient, something like 50% more lumens per inch than the 2 ft. ones. I haven't bought one yet but considering a 4x4 or maybe just an hps. thanks for all the tips on this thread!