they look awesome dood. cept for the one with ph issues all twisty. but im sure will come out of it. a 400 will be a whole world above the cfl, and a watt is a watt for the cost to run. on average the 400 should cost only about 15 bucks a monthy to flower with. in fact it will cost less than running the 250 cfl at 24 hour for veg. id recomend the 400 to flower with if thats the route you where looking at. will pay for itself in the first grow for the buying cost and impro9ved yield and potency using an hid