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:
Dude you got that backwards HPS are 2100K and MH are 4000K.
stelow54 Reviewed by stelow54 on . Metal Halide Question - Help please :) Hi guys, Iv just gotten a 150w MH and the bulb it came with was a ES Coated 4000k MH. The bulb was quite expensive but i wanted to know if it was correct spectrum for vegging ? I also got a Phillips 70w HPS SON lamp that fits in the same lamp. Im not sure of the spectrum or lumens but would like to know if this could be used for veg or better left for flower ? Thanks guys :D Rating: 5