Electronics > Projects, Designs, and Technical Stuff

New LED lights reliability

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thexeno:
Ok,  for some reason I don't feel more optimistic after reading the replies. I have to say, really interesting optinions..  :palm:
So, the solution is making your own LED bulbs with the best technology, in bulk, not selling them so you can not be charged for patent infringement! But they must be in enough quantity up to provide light forniture to your grand-grand-children to spread the costs :)

OwO:
Building a good quality LED lamp is not hard, as long as you are willing to give up the "bulb" form factor. All you need are some LED strips, a good quality power supply/driver, and a big aluminum plate.

Marco:
If the EU wanted to do something useful (Hah) they should create a standardized DC socket with standardized dimming protocol, and mandate procurement of it for all EU agencies. The commercial high reliability LED lighting has separate DC transformers. For residential we're stuck with AC for sockets because the only low voltage sockets we have are legacy AC ones for halogen lights. So we can get strips or an electrolytic capacitor in the lamp body.

Kjelt:
Two years ago I bought four some brands of led bulbs with the same socket, power and colourtemperature.
Philips, Osram, China1, China2

Well the chinese have their cutting corners strategies:
https://www.eevblog.com/forum/projects/lets-see-what-a-$4-ebay-_cree_-ledspot-looks-like/msg1189082/#msg1189082

But with later spots I also found out that the cheapest Philips drivers are inside almost chinese with some addons like a proper fuse.
But the leds and panels are from the same kind of factory as the china2 spots.

Why?  Philips can't compete anymore with their western design led spots because no westerner will pay the extra few $ to get a decent led lamp.
So they "clone" or better said make their led lamps the same price as the cheapest no-name brands , add a few minimal safety addons like proper fuse so they can't be sued in case it might be a cause of fire, and sell them with the $0,10 profit. Look at their stock prices and years results, they are not doing ok on the led lamp sells. Where they make their money is on professional lighting where the industries require and demand long lifetime and less care about the final price.
In professional lighting the cost of ownership is directly fixed with the reliability and longlevity of the product.
If you have to replace a driver or led panel from a street lamp someone has to driver there, climb in the pole and exchange the hardware. Total cost of that operation in manhours far exceeds the cost of the hardware that is replaced.

But western consumers are so cheap these days, they refuse to pay a decent price for their lighting products, not only the bulbs but also the fixtures are bought at Ikea for $10 instead of Lampstore design fixture for ten times that price, they don't care, if there is light, there is light.

Psi:
I'm afraid if you want reliability you will need to make your own LED lighting.
The LEDs themselves are fine but the drivers in consumer lights are always pushed near their thermal max to make them fail in the 1-3 year range.

LED strip lighting is one way to get something reliable. And you can make some pretty nice room lighting with hidden led strips.

I've done my bedroom with a hangng false-ceiling with RGBW strip lighting and am very happy with it.
It's all indirect light and shines up onto the real ceiling and reflects off that.

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