Hi all, I have a question for you.
A co-worker was describing a situation to me the other day where a HID light (metal halide or high pressure sodium, I'm not sure) would light up for a while and then turn off; a while later this would repeat. I figure that this is thermal cycling, but I'm not sure where the heat-sensing element would be...in the ballast, or inside the lamp? He thought that it had something to do with the capacitor as he's heard of this problem being rectified in the past by replacing the cap.
There's a restaurant that we go to occasionally that, for the last 2 years or so, has had a pot light in their soffit that has been doing the same thing.
It would be nice to have a clear understanding of just what is happening because I'm sure I'll end up explaining this to a customer some day. I'd like to not put my foot in my proverbial mouth when that happens.
Thanks a bunch.
Shawn.
