fridge 15W SES blulb
On 10 Dec, 09:19, wrote:
Andrew Gabriel wrote:
In article ,
* * * * "Toby" writes:
Surely a 15W lamp is going to be running at the same temperature as any
other filament lamp at the same voltage?
No, there's a range of temperatures filament lamps operate over.
If the "special appliance" lamp is also 15w, but produces less light, it
would throw out even more heat!?
A 15W mains filament lamp is so inefficient, that you can regard it
as generating 100% heat to a first approximation.
Surely, regardless of how efficient or otherwise it is at producing
light, the light ends up as heat anyway. *So given a 15 watt lamp
*all* of the 15 watts ends up heating the room that the lamp is in
except for any light that escapes the room.
--
Chris Green
Light energy spontaneously transforms to heat energy!!!!....
Ummmm, interesting concept!!!!
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