On 20 Nov 2006 10:13:16 GMT, Ian Stirling wrote:

|Dave Fawthrop wrote:
| On Sun, 19 Nov 2006 23:12:53 +0000, Steve Firth
| wrote:
|
| |On 19 Nov 2006 14:33:10 -0800, wrote:
| |
| | Are there any commercialy-available low voltage lights which run cool?
| | Anything other than LEDs?
| |
| |LEDs do not run cool. No form of lighting runs cool. HTH.
|
| Depends what you mean by cool.
| LEDs do not run *cold*, (at ambient temperature) but run at a low lower
| temperature than incandescents, halogens etc, which in my book classes as
| *cool*
|
|They generally produce the same amount of heat for a given amount of
|light - it's just spread out more.

Just not true :-(
Almost all the power used by a 100W incandescent bulb goes into the room as
heat, only a tiny amount as light. Everyone who has burned a hand on a
lit light bulb will know that. A 22 watt energy saving bulb with
equivalent light output to a 100watt incandescent can only emit under 22
watts as heat. They only feel warm to the touch

--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.