this post was submitted on 23 Sep 2024
163 points (90.5% liked)

No Stupid Questions

36154 readers
855 users here now

No such thing. Ask away!

!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)


Rule 1- All posts must be legitimate questions. All post titles must include a question.

All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.



Rule 2- Your question subject cannot be illegal or NSFW material.

Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.



Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.



Rule 4- No self promotion or upvote-farming of any kind.

That's it.



Rule 5- No baiting or sealioning or promoting an agenda.

Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.



Rule 6- Regarding META posts and joke questions.

Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.

On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.

If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.



Rule 7- You can't intentionally annoy, mock, or harass other members.

If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.

Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.



Rule 8- All comments should try to stay relevant to their parent content.



Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.



Rule 10- Majority of bots aren't allowed to participate here.



Credits

Our breathtaking icon was bestowed upon us by @Cevilia!

The greatest banner of all time: by @TheOneWithTheHair!

founded 2 years ago
MODERATORS
 

How come LED Light Bulbs only last for about 2-3 Years?

I've bought and replaced a lot of light bulbs, and I noticed that all of them said "up to 20,000 hours" which would be about 5 years given 12 hours of daily use (which we definitely don't).

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 27 points 2 months ago (1 children)

Since people are just giving snarky douchebag replies, I'll actually attempt to answer the question since that's what this community is for?

The estimate given on the packages of these bulbs are absolute best case scenario, using an optimal temperature range and pattern of use that won't really match up with the average household because:

  1. You may go on vacation and let your house get cold or hot. This could affect the life of thr bulb

  2. The manufacturer is likely leaving the bulbs on 24/7 when measuring. Most people turn lights on and off multiple times throughout the day. This can decrease the life of thr bulb, just like with any other electronic device.

  3. Humidity in the house can change dramatically year round. Manufacturing tests probably keep a constant humidity level.

  4. If you're buying cheap random LED bulbs off Amazon from dogshit brands (i do thid too so not knocking you), the manufacturer estimates might just straight up be a lie.

I'm sure there are other reasons but that's a good start.

[–] [email protected] 1 points 2 months ago (1 children)

LEDs can take quite a beating. The only thing that degrades then is being on, and being hot. For all purposes unless it's inside a restaurant kitchen or they're on, they're not hot.

Other packaged electronic components follow the same rules. Except wires and solder that can oxidize without being used.

So no, I think that's a grift if you can't reach 5 years. When domestic LED lighting was in infancy we'd hear all power LEDs, like for cars, should last 10 years.

[–] [email protected] 2 points 2 months ago* (last edited 2 months ago) (1 children)

It wouldn't degrade from being shut off and on a bunch of times? I know like HDDs can degrade faster if they're constantly powered off and on.

Appreciate the feedback. I just tried to answer the question the best I could since at the time most of the replies were unhelpful and rude

[–] [email protected] 2 points 2 months ago* (last edited 2 months ago) (1 children)

Mechanical things suffer a lot of stress from turning on/off. But even spinning disk storage turns off automatically if desktop is idle for a certain time, it's a balance between switch vs continuous operation, they have overlapping kinds of wear and tear.

Top of mind, you can expect 10k cycles from typical buttons and it's hard to be less complex than a button. Because metal parts are subject to fatigue.

Flash based drives would certainly fail faster or slower depending on the number of write bytes over its life.

Then there's erosion caused by electrons, which is my biggest suspect for the problems of last generation of Intel CPUs. You have to royally screw up to start selling something that overlooked this.

[–] [email protected] 1 points 2 months ago (1 children)

Yea I don't think I'll buy Intel again. My next CPU upgrade will likely be an AMD ryzen chip.

[–] [email protected] 1 points 2 months ago

Wait until you hear AMD is treating OEMs now as bad as Intel did on their most glorious moments.

I'll try to buy as few computers as I can until Risc-v is main stream.