Quote Originally Posted by the image reaper
my metal-halide 'vegging' lamps are 2100K, my HPS 'flower' lamps are 4000K ... I have used my HPS for complete grows, seed thru harvest ... although warned of stretching with the sodium lamps, I experienced none ... plants grew normally :smokin:
I am using a 2100K lamp now for flower and loving it. I have 2.5ft colas filled with buds the entire length with zero/very little stem showing. It's awesome :thumbsup: