off topic: junk led from China
(media.greatawakening.win)
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Make incandescents great again. I miss real light bulbs.
I certainly don't miss how much they cost to run though or all the waste heat. Incandescent flashlights also sucked, even tiny LEDs outperform those Maglights from the '90s.
In the winter it's not so much "waste" heat, it's less work your heating has to do. (I know, gas is cheaper.)
They worked. Let me tell you what I'm looking for in a light bulb.....
And even the worst LEDs I've had worked for five times longer than any incandescent.
This is certainly not true, at least of LED's in general. Maybe you're buying a pretty good brand. The LED in the picture is at most a year old and as you can see is only operating at about 30%, which is my book means it failed. Probably failed months ago, which means I got less than a year from that bulb, which is only on maybe four hours a day.
Good LEDs are amazing and last a long time. Cheap LED products (basically most stuff at the supermarket) can be really, really horrible - poor colour rendering, ugly tint, flickering - and are more expensive in the long run because they don't last long (insufficient heat sinking, poor drivers, etc.)
I don't have a problem with incandescents. The reason why I like the LED's is that it seems often some fixtures have some limit on wattage, I guess because of the heat and usually the wattage is too low. Going with incandescents and abiding by the wattage warning I don't get enough light from the fixture. So putting in an LED with a much higher lumens rating works.
Sometimes I wonder if China is not only causing us to waste our money on this junk but at the same time causing us to fill up our landfills.
Was trying to use catbox to upload this image so I could create a text post but catbox didn't seem to be working, or it was me.
At any rate, not sure if China just produces just on purpose, produces junk because they don't know how to produce quality products, or produces junk because the companies outsourcing the manufacturing to them are giving them crap manufacturing instructions and asking them to work with crap components to cut costs.
These new LED lights which are supposed to last 10 years which you pay top dollar for are junk, at least the ones I've run into. I doubt there are any US manufacturers. I most likely purchased what I thought was a named brand at Home Depot. Probably got about 1,200 hours out of it. And as you can see it's probably only about 30% functioning. It probably was at < 85% long ago so probably a lot less than 1,200 hours at near full lumens.
I think the individual LED chips are overheating because the heatsinks aren't properly designed or implemented. In your photo example, nearly all the heat generated by the bright LEDs has to escape down the support wires and powerleads and it isn't enough heat sinking.
It is, the LED headlamps I've used in cars have some beefy heatsinks on them.
Are the heatsinks for the LEDs? I don't know much about car LED lights but just recently was reading up on some LED's an I guess an issue with the blinkers as they blink too fast, I guess due to not enough resistance. So I think they have a resistor mounted on a heatsink which mounts in the engine bay to fix the blinker problem.
I read an article which talked about LED's failing due to not being able to handle the heat. I'm curious why you say the heat has to escape down the support wires? Why is that?
There are three ways to shed heat here. Conduction, convection and radiation.
The conduction down the wires would be the main one I think, followed by convection in the air in the bulb and conduction to the glass -(I don't see why it would be a vacuum in the bulb) followed by infrared radiation which would be the smallest heat transfer.
I think this because the LEDs would be running at less than 100 degrees C so radiation losses would be smaller than an incandescent filament bulb where the filament is at 3000 degrees. Also, as mentioned by others in this thread, more successful LED implementations have big conductive heat sinks.
I've gone back to CFLs in some fittings, they last longer.
Most of the CFLs I put in my house 10 years ago still work. As far as LEDs pretty much only the FEIT ones have had decent reliability.
Interesting. I just returned the LED bulbs to Home Depot. The lady looked them up and they were ecosmart. So with my store coupon I purchased replacements. Didn't get the ecosmart. The only other ones were feit. Hopefully they work better than ecosmart.
Isn't there a hazardous waste issue with cfl's because they contain mercury, or something like that?
Yes, but I have a hoard of them already.
Look like swaps. Are you sure you don't have a PCR test there?
Buy American when ever possible. Buying Japanese is a second option, and if you need a third option, pray that you can find the American or Japanese at another store. Lol.
I would love to buy american. Unfortunately not sure any bulbs are made here any longer. I remember when congress outlawed (or something along those lines) incandescents. I think there's a company called newcandescent which maintained manufacturing of incandescents in the US.
No. https://www.lightbulbatoz.com/articles/are-light-bulbs-made-in-the-usa/
Thanks. Some useful info in there.
https://www.cbsnews.com/news/incandescent-light-bulb-phase-out-2023-biden-rule/
The O'Biden Administration at it again.
Congress put a stop to incandescents years ago, way before Biden. It was even before Trump.
Yes, but some companies found loopholes and continued to make them. I still can buy them at a dollar store. Trump did say he wanted to bring them back.