Why would you want warm whites during Vegetative growth? A metal halide is better for vegetative growth than an HPS and it puts out blue. An HPS puts out red.
IthoughtIknewitall Reviewed by IthoughtIknewitall on . Fluro question. Hi people, I decided to go with fluro's for the veg stage of my next grow to cut a few costs (electric bill) and also so I can make a seperate flowering room with my hps in it. I have bought 4 4 foot fluros at 40 watts each. The bulbs that came with them just said white on the boxes. I know I need warm and cool white but is there any way to tell which I have ie colour as I know some are pinkish and others are blueish. Cheers :D Rating: 5