I bought some metal halide lights off ebay. $50 apiece, used. I am taking some risk. They are enclosed with a glass. I will keep this NG updated about them. I might install one light in our backyard, instead of the 500 watt halogen light -- I'll see how it goes.
I do want to mention that a 175 watt metal halide usually outperforms a
500 watt halogen. A 100 watt metal halide is a little dimmer than a 500 watt halogen but a little brighter than a 300 watt one. However, metal halide has a spectrum more favorable to night vision than halogen or other incandescent. For outdoor illumination at night, a 100 watt metal halide may be as effective as a 500 watt halogen.A couple things to keep in mind:
- Don Klipstein ( snipped-for-privacy@misty.com)
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