When an LED bulb dies, it's typically not the LED, it's the electronics driving it. This is worsened substantially by heat. If you have recessed downlights or something, that's close to worst-case for an LED bulb.

Lights with non-replaceable bulbs can actually be far better, because they can be designed for their environment. Recessed downlights with built-in LEDs for example can thermally couple the LEDs directly to the metal housing, so the heat can be dissipated into the surrounding air, instead of into the recess.

▲

bradknowles a day ago | parent [-]

Maybe in theory. In practice, the Phoebus Cartel was a real thing, and they limited lightbulb lifespans, worldwide. The same thing exists today, albeit more because companies that sell lightbulbs want to keep selling them, instead of putting themselves out of business. So, many LED lightbulbs are intentionally designed to fail early.

The only place where this doesn’t happen is in the country of Dubai. Because of national law, lightbulbs sold there are required to have very long lifespans. That’s why there is a world-wide grey market business for taking existing LED lightbulbs apart, snipping off a resistor so that they pull about half the amperage and then putting them back together, and suddenly their lifespan is increased by 10-100x. This is called a “doobie”, after the name of the country. Check out “bigclivedotcom” on YouTube if you want to see this in action.

You will notice this if you buy Philips Ultra Definition bulbs in Dubai, versus the same bulbs sold at the same amount of lumen output from the UK or elsewhere in the world. The “doobie” version has twice as many LED filaments inside, compared to the UK version. Same price, way different life span. Philips is one of the better manufacturers of lightbulbs, and nowhere remotely close to the only one doing this.

With regards to LED light fixtures (ones that don’t allow you to screw in your own bulb), most manufacturers do the same thing. They’re designed to fail early. Who wants light fixture styling that is fifty years old, just because the LED lights inside haven’t failed yet? They want to make you buy new fixtures every couple of years, just like they do for bulbs.

Yes, there are exceptions in both cases. But they are the rare exceptions, not the rule. And if you haven’t studied up on the Phoebus Cartel, you can start with the article on Wikipedia.

▲

Youden 15 hours ago | parent | next [-]

I'm well aware of the Phoebus Cartel. It's not as straightforward as often reported. Have a look at Technology Connections: https://youtu.be/zb7Bs98KmnY

Dubai isn't a country. It's a city in the United Arab Emirates.

The Dubai bulb isn't some trick Big Lightbulb doesn't want you to know about, it's an engineering tradeoff: lower current on more filaments gives you higher efficiency and lower temperature but at higher cost and with substantially lower light quality (CRI).

You'll find that after EU energy labeling, there are products available to European consumers that well exceed the specifications of the "Dubai" bulbs. Look for EU energy class A. They often come with a 5-year warranty and rated lifespan of 50000 hours. The "Dubai" bulbs were rated for 25000 hours. You'll also find though that they're substantially more expensive and usually don't have a CRI above 90.

Regarding planned obsolescence, in many cases I can believe that a product will fail earlier than it would if designed for longevity. Rather than planned obsolescence, I believe this is simply a result of being cheap, a consequence of the race to the bottom. If you're buying cheap Chinese fixtures for $10, or cheap Chinese bulbs for $2, you're not going to get a high-quality, long-lasting product.

If you want products that last a long time, buy them and use them properly. If you want bright lights, make sure they're adequately cooled. Consider buying lower-voltage fixtures and bulbs so that you can have a separate power supply and don't put the full ~230V to ~3V conversion in a tiny space.

▲

CDRdude 31 minutes ago | parent | next [-]

> Dubai isn't a country. It's a city in the United Arab Emirates.

I learned recently that Dubai is also the name of the emirate. I don’t have a good understanding of the UAE governmental structure, but the Emirates do seem to have their own governments. Maybe it can be thought of as a country in the same way Scotland can be thought of as a country.

▲

Neikius 3 hours ago | parent | prev | next [-]

Biggest problem of leds is we have no good standards. Classic screw in bulb makes no sense with LEDs. Other formats usually mean you are screwed when you have to replace. So far LED strips seem the best way. A bit of soldering but you can replace them by parts.

▲

dylan604 2 hours ago | parent [-]

Screw in bulbs make plenty of sense. You are not going to get people to convert to LEDs by forcing them to replace every single fixture in their home. That would be ridiculousmaxxing.

	▲	rcxdude an hour ago \| parent [-]
		It would be nice to have an updated standard for newer buildings, though. In practice fewer and fewer fittings are using screw-in lightbulbs at all but there's not another standard.

▲

DougN7 10 hours ago | parent | prev [-]

I would love to buy an LED bulb that lasts a long time. I thought the reason for their premium price was supposed long lifetime. Mine all last as long as the older bulbs but cost 5X as much. Where can I buy such bulbs in the US?

▲

usefulcat 3 hours ago | parent [-]

There can be a lot of variation. From what I've seen, I'd say 2-5 years is a typical lifespan for an LED bulb. We have some recessed lights in the kitchen that require brighter bulbs, and those typically last only 1-2 years. But then we also have some other (non-replaceable!) recessed lights that are 14 years old and still work fine.

There was one time I bought some cheap ones from Amazon, and several of them failed within a few months. There was also an LED bulb in the front porch light (so, outside) that lasted around 10 years, despite being outside and used daily. I had several of that same type and that particular one lasted longer than all of the others, where the others were all inside and not installed upside down. So yeah, it varies.

	▲	dylan604 2 hours ago \| parent [-]
		My Philips Hue bulbs are going strong for just over 7 years now. They are the premium bulb in my experience. I've bought other LED strips using controllers compatible with Hue, but they died where there are obvious burned points all along the strip. We all have different experiences that will counter each other, so it's frustrating to no end on finding trust worthy devices. Regardless of all of that frustration, thank the gods we no longer have to deal with CFL

▲

Marsymars 2 hours ago | parent | prev | next [-]

> The only place where this doesn’t happen is in the country of Dubai.

As far as I'm aware, we've got comparable bulbs available in Canada. We've got the Philips 95 CRI ultra definition bulbs and the ultra efficiency bulbs.

The UltraEfficient bulbs seem better-specced than the Dubai bulbs - the standard A19 of the latter is specced for 6W/600 lumen/25k hours at 80 CRI, while the bulbs I can buy at the drug store here are specced for 5W/810 lumen/50k hours at 80 CRI.

	▲	HnUser12 an hour ago \| parent [-]
		Interesting. I was just thinking I have never had to replace a single bulb in my apartment. I have lived here for five years and the bulbs weren’t new when I moved in. I also have Nanoleafs that I have had for about six years and so far no issues. They run for about 12 hours a day on most days. I am in BC,CA. I gotta take apart my lights and see what they are.

▲

Neikius 3 hours ago | parent | prev [-]

Read about Dubai light years ago. I am happily surprised someone else knows about this too :)