I use a lot of 20W 12v halogens. And none have blown yet. But also I
find the light is slightly warmer in colour. I use 5 on parralel wires
in a small kitchen and get a nice cosy feel.

Where as the 5 35W (35mm) lamps in another room have blown 2 lamps in
a year.

From what I ave seen with mains halogens the life is much shorter,
especially if you are where the mains voltage is high or prone to
spikes. And at £5 a throw gets expensive. Although quickly checking
the price of mains halogens seems to be dropping from a year ago.

If efficiency is really what you need go for low energy lamps. Ikea
used to do some very good pricing on these. Great for hall lights and
others that you leave on a lot and do not sit with for a long time.

On Fri, 28 Nov 2003 20:00:24 -0000, "Pablo"
wrote:

The Screwfix catalogue says that Low Voltage Halogen Spot Lights use less
energy than mains voltage. How can this be? Do they defy the laws of
Physics? 50w at 12V uses the same energy as 50w at 240V.


Lawrence

usenet at lklyne dt co dt uk