On Sun, 29 Jul 2012 19:25:05 -0700, Jim Thompson
wrote:

On Mon, 30 Jul 2012 10:15:48 +1000, "David Eather"
wrote:

On Mon, 30 Jul 2012 09:53:26 +1000, Jim Thompson
wrote:

Loony Question for Today...

Which produces more HEAT, a 40W Incandescent, or a 40W Halogen bulb?

...Jim Thompson

Technically the incandescent. The both consume 40 watts but the halogen is
more efficient at converting power to light (and hence not to heat). I
said 'technically' because you are unlikely to notice the difference in
heat.

My thoughts, too. I have a fixture rated for three 40W miniature base
incandescents, presently loaded with three 40W Halogens. My
temptation is to go up to three 60W Halogens.

...Jim Thompson

How about dimmable LED lamps, three 20 W lamps will last much longer and
provide much more visible light.

?-)