Once again the hot weather has reminded me of just how much I dislike it!
Last night I noticed the amount of heat given of by my ordinary bedside
lamp - IIRC something like 80% of the energy in light bulbs is heat not
light. It made me wonder whether different bulbs would produce less heat?

Argos do a pack of 3 15 Watt BC Energy Saving Fluorescent Bulbs for £6.99

http://www.argos.co.uk/webapp/wcs/st...y?storeId=1000
1&langId=-1&catalogId=2501&productId=104088

These seem to have an ordinary 'bayonet' type fixing. Would these emit less
heat as well as being more efficient?

Can anyone shed some light on the subject?