As I said, I've run a 70w HPS before. It was inadequate for the 3 plants I tried to flower under it. Also, a single 100w CFL will not allow you to finish a plant. With CFLs, or any low-wattage system, you shoudl rEALLY be running multiple points of light. The extreme example of this is LED arrays.
stinkyattic Reviewed by stinkyattic on . 70 watt hps. Need some help I just received a 70 watt hps bulb from a friend of mine and was wondering if anyone knew if there is a way I could find a cheap ballast set online? And if so, will it come with wiring instructions or will wiring be easy. The most important question is if I do buy a ballast kit for it will I be able to wire it so I can plug it into any household outlet? Rating: 5