Andrew Gabriel wrote:
In article ,
Grunff writes:
Mary Fisher wrote:

Is there such an animal?

They exist, but the best LEDs are currently only around the
same efficiency as filament lamps, which means they get just as
hot and die quickly or are lower power and lower light output
(if you are thinking along the lines of retrofit lamps).
They don't get to the efficiency of fluorescent lamps yet.

They are *far* more efficient in bicycle lamps, the latest LED cycle
lamp (the CatEye LED300) is just as bright as their old standard
krypton bulbed lamp (the HL-500 was it?) and runs several times as
long.

I don't know whether this is down to them being efficient at low
voltages or what but has revolutionised cycle lighting, front lamps
can now realistically be run on AA cells.

--
Chris Green )