How can I build my own HPS or MH light system?

try it:thumbsup:
Bodom Children Of Reviewed by Bodom Children Of on . MH help I bought a 400 watt metal halide industrial type light. U know the ones that hang in like a warehouse or lowes. But anyway i hooked it up green to green white to white and black to black. Plugged it in and nothing. I can hear a low level buzzing from the ballast but the light bulb doesn't light up. Even bought a new bulb and nothing. Someone plz help. Rating: 5