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Posted to uk.d-i-y
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Lights with low heat output
Ian Stirling wrote:
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.
Low pressure sodium comes damn close - IIRC 80% efficient.
'normal' fluorescents are around 50%.
about 20% IIRC. LED about 10%. Incandescent about 1%.
Not to mention that at low enough powers, most forms of lighting won't
heat up much.
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