Re: Halide lamps and heat

Robert Allen (Robert.Allen@Eng.Sun.COM)
Fri, 28 Jan 1994 21:36:08 +0800

>>There seems to be a perception here that halide lamps generate lots of
>>heat. My understanding is that they are actually _more_ efficient
>>(that is, they generate _less_ heat per watt) than almost any other
>>lamps except high-pressure sodium.

That may be, but consider much heat 10 40 watt 4' tubes would
generate. Even if halides put out less, it could still be
a lot. And a 400 watt bulb is apparently one of the smaller