[geeks] Metal Halide Bulbs

Bjorn Ramqvist v53278 at g.haggve.se
Wed Dec 13 05:56:20 CST 2006


James Fogg wrote:

>>So I have a case of what I believe are Philips MH250-U bulbs.
>>250W Metal Halide, 21,000 initial lumens, something along
>>those lines. The box was sealed in a Philips HID container
>>and as such there are twelve of these rather large, very
>>interesting looking bulbs.
> 
> If you find a way to fire these be aware that the UV output is
> frighteningly high (sunburn and eye damage).

That's why you need a protective glass in front of the bulb, as long as 
it's the double ended version. The single ended is harmless.
Regular window glass is OK. Only glass that don't filter UV light is 
quartz...

/Bjorn



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