fonzirelli
Well-Known Member
A HPS bulb would be great for flowering and it can be used to veg but the light spectrum one puts off is not the optimal spectrum for vegging and will cause some stretching. The plants will grow faster in a vertical way than in lower thicker bushier plants like they would using a metal halide (MH) bulb for vegging. Depending on ones budget if they can either afford both a MH and a HPS or a light system that allows the use of a conversion bulb where you can use a MH bulb with an HPS ballast for vegging and them later when it is time to flower switching to a HPS bulb they will be much better off.
yea im actually doing some research on this right now. im thinking of using cfls for the seedlings but im having trouble figuring out the max wattage i can use