Cool ballast??? why?
Okay so I'm running my 400 watt Ushio 10,000k bulb it gives of great light. The ballast however runs MUCH cooler than it did with my other 400 watt bulb. I ran that other bulb for a year and a half with no problems but the ballast (ballast case actually) was always to hot to touch. If I wanted to move it I had to unplug it and let it cool. This time with the Ushio bulb the ballast is just warm, I can touch the case no problems, any ideas or thoughts?
Doug
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