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What Happened to the 100000 Hour LED Bulbs?

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Re: What Happened to the 100000 Hour LED Bulbs?

#131
post #6

My father in law is a general contractor and religiously keeps all his LED bulb receipts. If anything goes out before the listed hours he returns it to HomeDepot. He hasn’t had any issue so far including some of the older bulbs described in the article.

Pro tip: Home Depot recently started to allow receipts to be pulled up and items to be returned with just a credit card. Ikea does this too if you always scan your Family Card.

Re: What Happened to the 100000 Hour LED Bulbs?

#132
post #54

Earlier quoted context omitted.

Yeah, this is worth emphasizing. Just a handful 100W bulbs running from 5PM-11PM can consume several kWh every day.

probably you mean 100W bulbs...

Whoops. Yes, a 100kW bulb would probably be pretty bright.

Re: What Happened to the 100000 Hour LED Bulbs?

#133
post #33

I also have been disappointed with LED "bulbs". They get too damn hot in recessed fixtures but NOT because of the LED's. It's all because of the shitty power converter embedded deep inside the bulb getting too hot and failing. The industry has necessarily had to retrofit to where incandescent bulbs are supposed to go. I think that we'll start to see improvements in this area as people move away from "screw-in bulb" a…

Every so often, I come back to the "I should have DC power on demand in my house!" until I'm reminded that DC power loss over a distance can hurt bad, even 48VDC telecom power. Perhaps USB-C PD might help? USB power adapters are compact and PD offers standard, useful high power DC. If the adapters become ubiquitous, you could see "USB-C lightbulbs".

Power loss (I^2R loss) over distance is not caused by DC; it's caused by the combination of low voltage and high current. If current usage and distance are both small (as they would be in an LED-lighted house), wiring a house for DC is a perfectly reasonable thing to do.

Re: What Happened to the 100000 Hour LED Bulbs?

#134
post #38

Earlier quoted context omitted.

There's a lot of junk to be sure but tens of Philips & GE bulbs have been doing great for me for a couple years now. They don't run that hot either.

I was surprised at the early failures of my Sylvania bulbs. Had expected that going with a brand that has been in the light bulb industry for a long time, I would get decent quality, but they've all died in under a year. Now IKEA bulbs are my go-to, the mix of selection, quality and price is impressive compared to what I've seen but I haven't thoroughly researched this. Do Philips or GE do better?

The last I looked at them, Ikea bulbs ran hot the packaging advised not to be used in small/enclosed fixtures because they could overheat. Do you find that to be the case with the ones you're using?

Re: What Happened to the 100000 Hour LED Bulbs?

#135

I bought some G9 bulbs, and they are not performing like the halogens... It doesn't give me the full RGB like halogens and my house looks pale white(lacks red) instead of full color. I might go back, I do not like the look of my house, and I find myself turning on my living room lights AND dining room lights. The brightness wasn't there. There is massive improvement to be made on LEDs still.

[deleted]

Re: What Happened to the 100000 Hour LED Bulbs?

#136

So, engineering lead of a (outdoor) led Luminaire manufacturer here. And our sales director used to work for one of the biggest Asian light bulb OEMs. Happy to answer specific technical questions out there that this article triggered.

So, why do LED bulbs seem to last not as long as they should?

Re: What Happened to the 100000 Hour LED Bulbs?

#137

So, engineering lead of a (outdoor) led Luminaire manufacturer here. And our sales director used to work for one of the biggest Asian light bulb OEMs. Happy to answer specific technical questions out there that this article triggered.

More of a non-technical question, do you see demand for outdoor lights at the red end of the spectrum?

Supposedly that's better for night vision, light pollution and various animals. But everywhere I go I see yellowish sodium vapor lights replaced with white LEDs.

Re: What Happened to the 100000 Hour LED Bulbs?

#138
post #6

My father in law is a general contractor and religiously keeps all his LED bulb receipts. If anything goes out before the listed hours he returns it to HomeDepot. He hasn’t had any issue so far including some of the older bulbs described in the article.

Pro tip: Home Depot recently started to allow receipts to be pulled up and items to be returned with just a credit card. Ikea does this too if you always scan your Family Card.

> if you always scan your Family Card

i.e., if you agree to be tracked.

Re: What Happened to the 100000 Hour LED Bulbs?

#139

So, engineering lead of a (outdoor) led Luminaire manufacturer here. And our sales director used to work for one of the biggest Asian light bulb OEMs. Happy to answer specific technical questions out there that this article triggered.

How do you predict product lifetime?

Re: What Happened to the 100000 Hour LED Bulbs?

#140
post #114
post #6

My father in law is a general contractor and religiously keeps all his LED bulb receipts. If anything goes out before the listed hours he returns it to HomeDepot. He hasn’t had any issue so far including some of the older bulbs described in the article.

Does he scan the receipts first? Because most POS systems now use a thermal printer system that for some reason - even when kept at a "proper temperature" - the receipt fades over time, to where it is virtually illegible. The conspiracy part of me thinks this was done on purpose to reduce returns and warranty claims...

He will put the receipt in the original LED box. Usually stores them indoors and not in an attic.

I had a Lowe’s receipt do exactly what you describe out in my shed.

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