View Full Version : why "Enclosed Fixture Required"?

03-20-2010, 10:33 AM
Hi All,

I just bought a Hortilux Blue 250 MH lamp and I see it's marked "/E". That suffix means enclosed fixture required. But our new reflector does not have any glass so I guess that's not the right one. Why does this lamp need to be enclosed and how important is it to be enclosed? We just hve the one lamp set up in our house and I don't think it will need to be force air cooled, can't we use our Xtrasun AC reflector?
Thanks for any replies,


03-22-2010, 10:33 AM
Metal halide lamps have two glass enclosures because a broken lamp emits lots of nasty UV if the lamp fails in atmosphere......burns eyes/skin.

If the lamp has only one thickness of glass bulb, code requires an enclosed luminaire to use it.