On 8/11/2014 11:05 AM, Charlie Gallo wrote:
Again, you're looking at 1.17 watts of light, and therefore 12.83
watts as heat
All good analysis, quite sufficient as far as fire hazard is concerned.
But there's another issue -- that 13W of heat has to go somewhere, and
depending on the enclosure, some or all may stay within the enclosure
and raises its ambient. That may, or may not, allow sufficient
conduction of heat away from the circuitry to prevent destructive
failure of the lamp and/or its circuitry.
Something like 5-6 years ago, I bought a couple of Edison-base multi-LED
lamp assemblies from a hamfest vendor, and stuck them in a simple
reflector fixture (one-third spherical, thus 2/3 open) as lighting in
the shack. Within a month or two, both lamp assemblies had developed
cracks in the glass.
73, Jim K9YC
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