when I used fluoros, I used T12 tubes ... I just didn't see the lumen advantage vs. dollar cost, of the T5s, etc... (at THAT time) ... prices may have evened out, by now ... check here for comparisons:
Linear Ubend Circline
be sure to click on the details, and READ ... lots of usable info there, to be found ... :smokin:
the image reaper Reviewed by the image reaper on . T12's or T8's I currently got two shop lights using a pair of T12's each and a 400 watt metal halide.I'm going to add another shop light seeing how they're doing so well under them but I'm not sure if I should get one that uses T12's or T8's.If any one knows wich one "out of those two" are better than the othe for the plants please let me know, as well as the reason why if known. Rating: 5