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during the flowering stage, a single black light tube added to the mix of your cfls light output on 12/12; will dramatically increase flowering vigor and growth speed.
what is a black lights true spectrum temp and is it really a good light source [atmospheric or direct, regardless] for flowering?
-------------------- "and take me disappearing, through the smoke rings of my mind, down the foggy ruins of time, far past the frozen leaves, the haunted frightened trees, out to the windy beach, far from the twisted reach, of crazy sorrow. yes the dance, beneath the diamond sky, with one hand waving free, silhouetted by the sea, circled by the circus sands, with all memory and fate, driven deep beneath the waves, let me forget about today, until tomorrow."~bob dylan
I've never heard of this. I've heard adding uV b light can do this, dont know if that would be related. Will be interesting to see in any veteran growers will just laugh or substantiate this myth.
Well, if it does effect anything, it won't be dramatically. I don't think its worth the effort. I would much rather string up one more full spectrum T5 or T8.