At one time there used to be reguar discussions on here about the merits (or otherwise) of "energy saving" light bulbs and I for one have never been convinced by the claims surrounding them both on the claimed light output or the longevity.

I don't believe the claims regarding the light output because even a simple test with a camera will show that the light output is not the same as an "old fashioned" bulb of, for instance "100 watts". The energy saving bulb which is supposed to be of equivalent output is nothing like the same.

As to the longevity (or otherwise) I've had new ones which have failed after a short time but there were two in this house when I moved here about 10 years ago and they're still going. One is the stairs/hall light and the other is in my bedroom so neither are "on" for very long.

Because the "old fashioned" 100 watt bulb (lamp if you like) was due to be phased out, I bought a box of 100 so they'll last me quite a while? :^O