"Dave Plowman (News)" wrote in message
...
In article ,
Brian Gaff wrote:
But can be strange colours of course.
I'm not and have never been convinced that Halogen are anything but
unreliable current and tend to cook the sockets as well.

Halogen replacements for the older tungsten are common these days. They
are easy to see (as it were) as usually contain the halogen capsule within
and ordinary glass envelope. Needed as the filament runs much hotter.
They consume less current than the equivalent tungsten hence 'allowed'. So
no reason they would 'cook' the socket, as being more efficient must
produce less heat.

That last mangles the real story. Because they run much hotter, they heat
the socket more. They are more efficient because they run much hotter.