I think this is what ur looking for brotha.... I copied a post i put in one of my favorite threads ever (10 myths of lighting revealed by la9) and going to post it here...I hope it helps also included is a link for hpsvscfl so u can see what to expect during flower... Read and reread both threads and ur allset..
Hope that helps...
onthedl0008
Stoner
Stoner
permalink
LA9 this thread is Niiiice!
Luda im not really trying to jack this thread really it should be kept as simple as possible. I cant really speak on the bulb u have mentioned id have to research that a lil first. It would be hard to believe they could effectively produce the proper amount of color spectrum emittence necessary that would be sufficient enuff for a plant during Each stage of growth for a plants life.
I was originally commenting on how nice this thread was cuz it basicly takes all the most current scientifically proven data and make its easy.
With that being said, Yes plants do use all light spectrums to grow obviously.With enuff light of any type i suppose u could grow a plant to smoke. But thru out a plants life span It grows and matures during the seasons of its environment. Whether next to the equator or not it all comes down to light being bent by the distance of the earth from the the sun that creates spectrums when it enters our atmosphere and distance from the sun also creates these seasons naturally.
Its been scientificaly proven that plants use mostly blue light spectrum (actinic ) to be exact,found in alot of m/h bulbs during early stages of life also found during seasons of spring and summer and fall. This spectrum is also found in hps and that cfl only tries to mimmick but works great if ur doing a stealth grow.
Its also been proven that during a plants latter stages of life adolescence, puberty and maturation.That a plant uses more Red light spectrum to mature and reproduce Which happens during fall and winter when the distance of the sun from the earth is greater.
Ok LA9 im done bro.
Hope this helps peeps out making decissions when building a grow.
Also heres a link to a thread to let peeps know that there are some very inexpensive alternatives to people when choosing there lighting as well.
Newbie answers to lighting: HPSvsCFL During Flower = Quantity and Quality