Cfl Daylight bulbs as grow lights?

[kwarren]

Thanks again for your advice! Now I'm seriously considering going back to Walmart this evening and trading the 5000K daylight bulbs I bought several days ago for the 6500K. I know they have 60w equivalent and 100w. I kept my receipt and original box. I'm afraid 100w will be too strong as I can only clamp the fixture about 18" from the top of the small plants and besides, they get direct sun for about 3 hours a day anyway. I think I will stay with 60w but switch to the 6500K as long as the light is just a bright white color and is not emitting a distinctive blue cast. I think the 6500K has higher lumens also but my memory is not so good and I may be thinking of the 100w type. Thank you so much for your added imput.