ok. i was looking at ballast for a hps system and they are high. Then i started to think are they for only one bulb at a time, or can you plug more in to one ballast? time is a waste of life, and life is a waste of time, so lets all get wasted, and have the time of our lives.
The ballast is designed specifically for the wattage. If you use a higher or lower wattage bulbs, you will have problems. There are conversion bulbs if your looking to switch up HPS & MH.