In article ,
"Stephen Barnes" # writes:
Hi,

Saw a pack of 4 LED GU10 bulbs in B&Q Peterborough for a tenner. The box
seems to imply they equivalent to 35W.

It's a lie at that price.
They are equivalent to the same power of filament lamp which
they are themselves. They will probably have a very narrow beam,
and within that narrow beam, you might get the same intensity
as you do from a 35W filament lamp, but of course the filament
lamp generates that intensity over a wide beam, and hence much
more light output.

You will also find they are a completely different colour, most
likely a blue-white.

Many of these cheap LED lamps don't last long, either dimming
or failing outright.

Has anyone tried them? I got some
9W CFL GU10s last month off ebay and was not impressed, are LEDs any better?

CFL's don't make good compact light sources.

There are some LED lights which might come close, but they won't
fit into an existing GU10 fitting as they require a sodding great
heatsink to keep the LED cool, and they cost a bomb, and again
suffer from poor colour or low efficiency.

Commercially, small metal halide lamps are used for this purpose.
They have a high initial purchase price but low running cost, and
that's not a combination which seems to sell in the retail world.

--
Andrew Gabriel
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