Using these CFL lights for growing.

yes you can use cfl's for all stages. get good quality name brand ones and match the spectrum to the light cycle.
 
Yea those will work fine for veg although its proven that a bunch of 23 or 26 watters will give u better results than less, bigger bulbs.
 
You could always just get Y splitters and a pack of 23w cfls for like 10$, atleast by me. This is what i have in my tent, 3 23w and 3 42w 2700k cfls
 

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One last question, can I use a 6500k light for the whole growing process? Or will I have to buy a new light during the flowering stage?
 
You can use 6500k thru the whole grow but ull get loose airy popcorn buds. Definitely worth investing in some 2700k bulbs especially for flower. If u wanna grow using only 1 spectrum then get 2700k. Thats what im doing and its working just fine, just keep the lights a little closer to avoid stretching.
 
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