Low energy GU10 light bulbs?

AdrianW2

mister_oxo wrote: »

mains led's give out the equivulent light of 10 times the wattage of the led wattage.

The best lumens per watt of a shipping product is, I think, the Cree XR-E at 107 lumens per watt, their best laboratory prototype is 161 lumens per watt.

You'll get about 20 lumens per watt from a conventional halogen.

So even under lab conditions, and ignoring optical and electrical overhead, a LED 'chip' is only eight times more efficient than a halogon. In the real world, vendors selling 5W LED assemblies claim them as replacements for 20W halogens.

mister_oxo

This is pasted in here from the web site that I pasted a link to "Don’t be
confused either by the low wattage rating for energy saving domestic LED
lamps. A 7w incandescent bulb would give scarcely any light at all, but a
7w LED bulb is extremely bright. You should become accustomed to these
different rating values so you know what level brightness you want
(but of course, if you actually visit a store you can see for yourself anyway).
As a rough guide a ratio of 1:10 works well - in other words

a 5w LED would be a good match for a 50w incandescent bulb."

That is where I got the information from. I hope the web site is found to be
of help for those considering 240volt led lamps.

trogg

Hi, I just had a thought, are you sure you want the GU10 bulbs and not the MR16 ones ?
You said that the bulbs are held into place by 'clips', which the MR16 ones normally are, also the MR16 are a push in bulb whereas the GU10 have a bayonet type system.

If they are MR16 bulbs I believe they will be low voltage anyway.

I just thought I'd mention it, just in case, I wouldn't want you ordering the wrong bulbs.

http://en.wikipedia.org/wiki/File:MR-Variations.jpg