A standard HPS lamp will work OK from start to finish. You need a HPS ballast, too. A reflector would be nice, also.

How far away?...depends on size of the lamp, stage of growth, temps, etc.
Dutch Pimp Reviewed by Dutch Pimp on . HPS? standard HPS like £80 are they anygood and can i put seedlings on hps? how far away does the plant have to be from the tops Rating: 5