Longer-lasting light bulbs: it was complicated

It's a hot topic.
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[@TechnologyConnections]

So... yeah. And I didn't even get into things like the effects of thermal cycling stress!

[@glennvanderburg8708]

"The world is complex, and you should be skeptical of simple narratives." That's a great message that is applicable far beyond the topic of planned obsolescence.

[@mwbullen15]

Remember those 90's batteries that you could pinch to see the color change to show how much charge was left? I'd be interested in a video explaining those.

[@ruairi_d]

Congratulations on 2 million subscribers!

[@BlueLegion]

I'm surprised you didn't use candles as an analogue to compare the lightbulb to. There is literally a saying that the candle that burns twice as bright burns half as long.

[@tusing7780]

I wish Veritasium put a

[@quinnobi42]

"Incandescent light bulbs are called that because they rely on the phenomenon of incandescence to produce light in a bulb." I love this explanation.

[@starlingeyed]

I was one of the people who used the Phoebus cartel story to prove planned obsolescence, so this was some humble pie for me, haha! Amazing and informative, as always. I love getting to learn something new--especially when it corrects something I'd thought before!

[@Anfros.]

One of the reasons LEDs burn out too quickly sometimes is that the electronics in their bases are heat sensitive. So installing them in a fixture that doesn't allow air circulation around the lamp, like most fixtures meant for incandescent and halogen bulbs, can make them overheat and burn out. So if you find you are changing LEDs often it might be due to the fixture not the light source.

[@maiyannah]

Long life light bulbs are only not a savings if you value the time of getting a new one and performing the replacement at zero.

[@playludesc]

As far as planned obsolescence in LED bulbs, I have found paying like 5% more than the absolutely cheapest makes a huge difference in their longevity.

[@hydra70]

Another important thing about the centennial light. They never turn it on and off, so it doesn't experience thermal shock like a bulb in normal use would.

[@inasimplerhyme]

I just wanted to say thank you for the lack of ads. As someone who (occasionally) uploads KZbin content, I know it's possible to have it set so that ads periodically interrupt videos. This would probably make you more money, but you don't, and it is such pleasure! There's nothing like watching 20-40 mins of quality content with no interruptions. Again, my thanks!

[@ZandarKoad]

"The world is complex, and you should be skeptical of simple narratives." So true. Such a simple, straightforward message and narrative. I'm not skeptical at all of it.

[@jacobwing406]

This is consistently some of the best content created on this platform. No hyperbole. I would watch this with cult like devotion if it were on pbs, or British television, or if I had to pay a cable bill to see it. You are truly adding to the society you are a part of, while educating those who choose to watch. Thank you, and I hope you know your self worth, because it is immense!

[@Enjoymentboy]

My grandmother had a solution that enabled her to make her lightbulbs last so long that she never had to buy any. What she did was save all of the burnt out bulbs in her house and whenever she went to a hotel or restraunt she would take some with her and swap them out for working bulbs. I remember once when out for dinner she stood up, unscrewed the bulb in the fixture over the table, took out the bulb in it and put in a burned out bulb and then proceded to call the waitress over to tell her we had no light. I don't condone this behaviour but I was always amazed at how brazen she was and never got caught.

[@FerralVideo]

My coworker hit this case spot-on. Before energy efficient bulbs were a thing, he intentionally bought a 230v light bulb to install in a 120w fixture.

[@noba4696]

At my University in Germany this was actually the topic of one of my first lectures (mechanical engineering). So I want to contribute because you excluded Halogen-lamps:

[@sergiorr90]

You are a youtube treasure. Its very difficult to find a channel like this that places enough effort to carefully investigate a topic, displays well documented demostrations and with arecording quality that is just amazing. Thank you for your educational videos and greetings from Colombia.

[@sjgrall]

I've always wanted to see an incandescent bulb filament without the enclosure glass burn out. You've satisfied my life-long curiosity.