I’m in a nasty frame of mind right now, and this is what my 'tism brain decided to laser focus on for several hours. I’m mad that my light bulbs cost 10x more than they used to, and don’t last any longer, and my power bill is higher than ever.
Yeah yeah, I know, it’s probably just capitalism shitting it up on purpose for profit. And bulb science is probably solid, I guess. I’m just pissed off that I just barely managed to scrape through this pay period with $2.78 left in the bank before I default on my mortgage.
Anyway, any lightbulb science comrades got any info?
Either an electrical problem that’s burning them out or shitty bulbs.
If you have a dimmer switch, you have to get dimmer compatible bulbs.
shitty bulbs.
+1 on that as a potential issue. Don’t recall the brand, but I had bought a pack of light bulbs where the whole pack was having issues, to the point I called an electrician to check. When the electrician came and saw the brand he told me “those are garbage” and that he had seen plenty of people having issues with that brand.
I threw those away, bought some other brand. The exact same places where I was having to replace light bulbs often no longer had any issues.
What brand is it?
Don’t recall the brand. Threw the remaining ones out.
Two factors, quality and heat. If you buy bad quality they will last a short time. If the fixture is not designed to dissipate heat it will last less time. I found out the last one for a couple of mine. The ceiling lights with a shade kinda of a bowl like. The LEDs ones lasted less than a year. Then one of them I didn’t find the nut for it and put some other one that didn’t fit quite well but let the air flow and that one outlasted the other ones. Yes heat will kill your LEDs.
Anyone interested in learning more, BigClive on youtube (or alternate frontend) frequently shows off how badly cheap bulbs will cook their electronics if run at full voltage. They put in a dozen massive led chips to get the brightness up and then expect a tiny wafer of aluminum with no airflow to keep them cool.
This is why it is good to look out for bulbs that say not to use in enclosed fixtures. Those have the worst heat issues.
They get too hot and the 0.07$ capacitor they put in it dries out and dies. You want the 0.09$ capacitor which lasts 1000 times longer, but usually they only put those in the 45$ led bulbs.
You can do like me, when they die, take them apart and replace the capacitor with a super deluxe 0.11$ one !
Occasionally, for bigger lamps, they do need actual cooling fins though.
Yes, anything above 15watt needs heatsinks for sure
Holy shit I never thought about what’s inside an LED bulb past the LEDs themselves.
It’s an AC to DC step down voltage regulator and then a multi channel constant current regulator to drive the led and the current setting is changed by a microcontroller which usually has a Bluetooth or ZigBee or ism/315/433/915 MHz or infrared transceiver for communication with your phone / remote
You’re either buying really shit bulbs or you’ve got shit power. Probably the latter.
Your bulbs might be burning out because of overheating. These bulbs have their powersupply in the bulb screw, so there’s no real place for the heat to go. I have a ceiling lamp that causes normal bulbs to reach temperatures as high as 100c, and so they burn out every couple of moths. This might be your issue.
Edit: fixed misspellHow does one fix this?
Look for bulbs with metal fins where the white plastic is in your image. They’re there as a heat sink so the heat disperses into the air rather than building up inside.
LEDs should not get that hot. That’s literally a part of the technology
The LEDs don’t particularly (unless it’s a very powerful one), their power supply does though. LEDs run on DC voltage, so they need a converter from the AC line voltage to not die instantly
Ahhhhh ok
Even more so it’s in the design. The ones that overheat are being overdriven to their failure point. Better LED bulbs have more LEDs so they can be brighter with less power and more life.
What are you on about? I’ve switched to LED bulbs about 10 years ago, and I’ve never had to replace a single one…
Yeah sounds like something is wrong with the wiring in their house.m because this isn’t an led issue.
The only LED bulbs I’ve replaced had failed within a few months of purchase, the rest have lasted almost a decade now 👌
I also have a incandescent bulb on a smart switch for my bedroom, it’s seen A LOT of on/off cycles over the past 5/6 years but is still going strong. I dread replacing it when it fails, as the manufacturer is no longer in business…
16 years ago, when I moved into a new apartment, I bought a 4 pack of colour changing led light globes. I liked them so much, I ended up replacing all of the remaining globes in the apartment with white only versions when they became available.
About 7 years in, 2 of them started having problems, so I replaced them. The other 2, along with the others I bought along the way are still going strong. I took them with me when I moved out of that apartment and put back the globes that the apartment had when I first moved in.
My current place has all the globes I bought, along with some my roommate had from the same timeframe. He never had any problem globes.
Now, these globes weren’t cheap, but I think that’s the point. Light globes don’t burn out like they used to, but if you buy the cheapest piece of crap you can find, you’re gonna get… well, the cheapest piece of crap.
As for your power usage, I suggest you look elsewhere. Even the crappiest led light will use less power than practically everything else.
The bulbs generally contain around 10 LEDs arranged in series, so if any one of them fails, the bulb no longer works. Also they are generally not cooled well, and the heat leads to faster failures.
If you have a dead one around, pry it open and you’ll likely see some slightly charred or discolored plastic and also one LED with a tiny charred spot.
Seems like it would be easy enough to mitigate both of those problems with basic design improvements, but cheap design causing early failure is sort of a win/win from the mfg perspective.
There are a few reasons it could be happening so I’ll start with some the most common
If your switches are dimmer switches and you’re not using dimmer bulbs they burn out faster
If your light fixtures are sealed you need to get bulbs that are compatible with sealed fixtures
Make sure you’re getting quality bulbs as lower quality bulbs will die faster
If your area has less than stable power your bulbs will burn out faster, though higher quality dimmer compatible bulbs will handle the less stable power better (you don’t need a dimmer compatible light fixture to use dimmer bulbs)
I use GE Reveal HD+ bulbs in my fixtures (basic apartment sealed domes) and they just keep on keeping on and they’re really color accurate.
I started with store brand LED bulbs and they just kept burning out and the color accuracy would be best described as vague at best. Not to mention they’d burn out pretty much every year when the storms would roll in and my power would get flaky.
It’s wild how back in the day most of our appliances were good with AC current but now DC is starting to become more prevalent. It’d be wild if in 100 years you didn’t screw in a lightbulb but fixtures had a USB port to power the things.
I’ve heard of PoE bulbs, but not seen them anywhere. That would be awesome for smart home as well as the powering aspect.
I already have USB sockets.
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Bad design. These bulbs often run supper hot, resulting in premature failure from electromigration and similar. Some manufacturers are better about this then others, so try another one. Filament style bulbs also tend to run colder, and last a lot longer. (But they flicker and play badly with dimmers)
What is a filament style LED bulb?
for the same reason diablo canyon 2 can’t be more like diablo canyon 1
It’s either the wiring in your house or the light fixtures or both… If I remember right older light fixtures, like before the last 15 years, don’t have the right type of power regulation and it kills LEDs quick. Source: Not an expert just have the same problem in my place.
I think with an old light fixture it’s more likely a heat dissipation problem than it is the quality of the power. Incandescent light bulbs handled heat just fine (that was their whole point - they heated up until they were white-hot inside) but heat kills LED bulbs.
The first few generations of led bulbs last longer. I have tons that are still going and no noticable loss in brightness even though the packaging said to expect that in place of burning out. Now there are a lot of shit tier ones mixed in. As others have mentioned there are also a number of specific compatibility problems too.
