Questions & Answers for: Sunmaster how to test a ballast

...Is there a way to test a ballast to see if it is working properly? I`ve always used one ballast to one light.i.e if your bulb is a 400 you need a 400 ballast only and feeding no more off it. Try ...

I have a ballast from spain I just got and it won't fire on my 400 watt HPS I know it's getting power so what's the problem Make sure your supply voltage is the same as what it is rated for. The ...

currently using a 1000watt and a 600watt system within a 100 amp breaker panel. Although on different circuits, the 600watt has trouble initiating. Both are on ballasts. Thanks A 20amp breaker with ...

...high output HPS bulbs. Only one of them is really bright. The others are about 80% by eye. The brightest one is nearest to the transformer stack but the others don't deminish as they get further ...