On Wednesday, November 15, 2017 at 1:48:09 PM UTC, Brian Reay wrote:
On 15/11/2017 12:18, Clive Page wrote:
Nearly 3 years ago I bought several 13W LED bulbs from Messrs Ryness
lighting in Old Compton St in London.Â* They were expensive, £11-99 each,
but I was reassured to see that they had a 3 year guarantee.

Last week one of the 3 started flickering: not a great loss of light
output, but very distracting to anyone using it and probably a sign that
it was about to fail.Â* I had, being so doubtful about LEDs, kept the
receipt and dug it out to find it was only 2 years 11 months and three
weeks since purchase.Â*Â* So I took it back and I managed to persuade the
manager of Ryness to replace it.Â* Even more amazingly, the price of
these has now gone up from nearly £12 to £18.Â* Maybe that's because so
many have failed and had to be replaced.Â*Â* I have to assume that the
claimed lifetime of 50,000 hours (a decade or two at our typical usage)
is just a wild extrapolation from their testing programme and wouldn't
rely on that at all.



I'm unconvinced re LED lights in the domestic setting, not so much due
to the life (although it is good to see a seller honouring his warranty)
but more the light output. We have them in our motorhome and, in the
confined space, they are OK. However, we tried them in the kitchen
(replacing some halogen bulbs - 2x40W halogen per fitting) and with LEDs
they were hopeless. I forget the rating of the LEDs but they were,
supposedly, equivalent to 40W bulbs. At a guess, they were more like 25W.



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I have quite a few LEDs around and quite a few CFLs left. The CFLs are now failing through age. However the filament LEDs are failing far quicker than the LEDs.

I have had Wickes 7w GU10 CFLs in the kitchen for a long time but threw them all out recently as I just couldn't cope with the negligible light output any more. They were replaced with Wickes 5w GU10s and the light output is good, probably the same as a 35W halogen.

I had a supposedly 1200 lumen LED bulb in the bathroom from Ebay, but that went in the bin too as the light output just was not sufficient and the colour awful. Light output was maybe the same as a 25W bulb at best. It got replaced with a £2.75 1520 lumen LED bulb from Home Bargains which is great, nice colour and plenty of light.

I have quite a few 4W LED filament bulbs from B&Q. They are not bad, give off just enough light but wish they were brighter. However have had 2 fail already.

Other than that I have a few Ikea LED bulbs around which I dislike. Too dim and a nasty thin colour.

What is needed is some form of independent testing and rating so you have a better idea of what you are buying.

Philip