
dont be a fool if you'r scared...
buy yourself a cased Ballast, then a reflector of choice, a hps bulb has to be equal to the ballasts output (250W = 250HPS & 400w = 400w HPS 600W = 600W HPS ) Only. u cant put a 400watt hps bulb through a 600w ballast.....
Erm nothing hard about the hps system.....