just get a conversion 600w hps bulb for your mh ballest
slowmotion Reviewed by slowmotion on . 250 hps ballast anyone know of where i can get the parts to build a cheap 250 watt hps ballast? or know of anyone with one they would get rid of? i've got a case of 10 phillips 250 hps bulbs an old friend gave me but i only have a old 600 watt mh ballast. thanks in advance [email protected] Rating: 5