Although just to add to my last post, the heat of MH's can shatter glass if the glass is too close. I'd keep it at least 6" away from the bulb. Otherwise use tempered glass.
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Some people say, "How can you live without knowing?" I do not know what they mean. I always live without knowing. That is easy. How you get to know is what I want to know. - Richard Feynman
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