On Sep 5, 12:22 pm, wrote:
Has anyone tried LED lamps? I bought, as a trial, a couple of GU10 LED
spotlamps to fit in a five-unit ceiling fitting (the other three units are
GU10 CFLs). They give quite a bright output for only 1.2W consumption each
(the CFLs are 7W consumption). They are rather more directional than the
CFLs (not to mention having a rather 'cold' quality to their light). For
me, the jury's still deliberating...

I wonder if MR16s that run from 12v could be better than GU10s that
run from mains.

With mains I'd expect less conversion efficiency and greater heat
losses, and the hotter the fitting the less light the LEDs will give
out.

cheers,
Pete.