Quote Originally Posted by jiggsaw
That's crazy 3w! I have just one growing now , I'm trying to get a white widow seed to bust it's been in a paper towel since thursday night I will probably add another seed. The one is growing pretty nice it's only like 1 week old . I'm going to grow all these with cfls I already bought all the wires and sockets and bulbs and junk. Next time I will use 400w hps and mh and compare. I spent allot of time going to all the lowe's and home depot's and walmarts to get everything I needed I went to 5 stores looking for high output 6500k. I could barely find a 6500k I got these at walmart for 9 bux for two! I found some high output 2700k's for flower though. I found a HUGE bulb at home depot it might be too big but it's 4200 lumens by itself 2700k it cost 16 dollars, it fits a standard light socket too. I found a 55w 2700k at walmart for like 10 dollars a bulb too. I bought 4 of those and 8 26w ones for flower. I didn't buy that big one but I still might.
The plant in the 23w CFL image was grown under a warm 2700K CFL. There is plenty of blue light in all CFL spectrums for a healthy plant. There is no need to switch spectrums on fluoros. That is a holdover myth from MH and HPS where MH is deficient in red and HPS is deficient in blue.

If you search for cool vs. warm CFL spectral graphs you will see a slight amount more of blue (though only 10% is necessary) in cool and a lot more green. Not much difference to a plant. Just remember that we do not switch suns halfway through outdoor growing.