On Mon, 9 May 2016 06:37:55 -0500, Leon wrote:


Spalted Walt wrote:
We report, you decide.

http://www.ledsmagazine.com/articles...duce-heat.html

https://en.wikipedia.org/wiki/Therma...igh-power_LEDs



Ok, So it seems that LEDS waste about 70% of the energy that they consume
and that energy becomes heat.

Unless they are IR LEDs

In so much that the typical LED, and all of the ones I have purchased, use
10% or much less energy than a comparable incandescent light I have not
witnessed any heat at all. My sampling has included 3-4 ribbons of LEDs,
multiple strings of LED Christmas lights all plugged into each other, and a
couple of out door 60 watt incandescent coach lights replaced with
equivalency light out put LED bulbs. The biggest consumers of electricity
of this sampling is 7 watts and even those might only be producing about
1/3 the amount of heat of a typical 7 watt incandescent light bulb.


Show me a single LED that consumed 180 watts by itself and I think it, the
LED itself and not the transformer or other involved electronics, will get
hot enough to equal a common 60 watt incandescent light bulb.


Exploding LED lights
https://www.youtube.com/watch?v=CUTUa8Ngt-M

https://www.youtube.com/watch?v=CsZWNM1Iuig

When bread boarding LED's I have burnt my fingers more than once on an
over driven LED, the bulbs can take more than the ribbon stuff does.

Just thought I'd throw this into the conversation.