i use those well i use the cool blue for veg and the cheep-o ones for flower
u will need 4 of ea for flower and veg
get the cool blue they sell in packs of 2 at wally world
get the Great Value ones GV they are in the color spectrum for flowering
they are like 5 bucks for 4 i think and the cool blue ones are like 6bucks for 2
i haven't used the ones u showed up there
twitch Reviewed by twitch on . need help with lighting !!!!! i waz wondering how many of these would i need for 1 or 2 plants????here are some details T4 spiral 42 watt = 150 watt equivalence 2700 lumens 12,000 hours life Saves $130 in energy over life of bulb Lasts 8 years Energy Star rated http://i147.photobucket.com/albums/r287/marvingbn/bulb.jpg Rating: 5