right now i've got a sunpulse 6k for veg, and i'm going to be using a sunpulse 3k mh for flowering... going to be my first time trying these bulbs out, but i'm pretty intrigued to see how they do after someone on another site said that he uses them exclusively and loves them.. i've also read before how mh's are actually better for flowering since they have more light in the uv range, which is better for resin production over hps bulbs, and i love how the sun pulses can be bought in various k's much like cfl's..
i think they go from like 3k all the way up to 10k's, which they say are to be used only for like the last week or so of flowering, but i'll be damned if i'm dropping $125 on a bulb i'm only going to be running for a week each grow..
i'll see how i like the sun pulse bulbs for this grow, and if i don't like them, i have some eye hortilux blues i can use again.. and the sun pulse bulbs are also supposed to be made to fire in electronic ballasts, which i like after blowing an eye hortilux in my last grow after it being like 2 months old..