In article ,
Cynic wrote:

Unfortunately it is unlikely that we will see LED lights that are
plug-in replacements for incandecent bulbs any time soon - except
perhaps a type that compromises so greatly on efficiency that they are
poor substitutes. There are some tricky technical problems that will
need to be overcome first. So you'll need to replace the entire
fitting.

As an experiment, I got a couple of the 3W ones of these:

http://www.tlc-direct.co.uk/Main_Ind...Led/index.html

some time back to replace 2 x 50W GU10 halogen spots. TLC had them on
offer at a fiver each at the time.

As an experiment, I deemed it a success and wished now I'd bought more at
that price! They're not quite the same in terms of coverage and light -
they only had one type at the time and I'm guessing it's the "cool white"
version. I think the "warm white" might be better suited for my test
- kitchen to illuminate the cooker area. Curiously enough, there is a
start-up delay too - fraction of a second (1/4 to 1/2?), but it's still
there. I guess they have some sort of fancy PSU that needs to stabilise
first.

I recon that I actually need 3 of these to fully illuminate the same
area as 2 x GU10 50W halogens, so at some point soon I'll get another
and a fitting, however 9W to replace 100W is good in my book.

Gordon