I'm a first timer and still at the seedlig stage.
I use cfl 250W 5000K for veg and have a 250W 2700K for flowering.
I was adviced to buy those lamps by the boss of the grow shop, when I was planning to buy HPS. The CFLs, he said, was sufficient for 4-6 plants.
Those will work well and significantly less power (electrical) cost!!
I ran 5000k throughout all....no problems, cutting light to 13/11 in bloom stage.
Good luck!!