Tell that to my monitor run at 120/400 nits that degraded
And where is current in the equation?
Are these estimations for 10%, 50?, 100? turbo? I’d say that it influence lifetime of LED a lot.
No matter what, LEDs are a significant improvement over using incandescent bulbs or fluorescent bulbs. I converted my whole house to LED a couple of years ago and to date have only had a single bulb fail. That was one in a chandelier and the replacement was about $3. I bought all of my fixtures and bulbs directly from China before the US postal rates went up. It was a bargain compared to buying stuff from my local home improvement stores. One chandelier in my home is so hard to reach that I am very glad to have LED bulbs and hope I never have to replace them again and probably will not need to do so.
BTW, I replaced the fluorescent ballast in one kitchen light shortly before converting to LEDs It cost more just for the ballast than the entire conversion, including the cost for the LED driver and LED array. The two 16W U-shaped fluorescent bulbs in that lamp run about $17 each and needed to be replaced every couple of years.
You might get that experience with DIY lighting with driver separate from led fixtures, but in my experience led “bulbs” are literally hot garbage and seldom outlast 2880k halogen
Chinese led bulbs are the worst, no heatsinking and noname caps not rated 130c running at 70++c = dead in 500-10000 hours
At least Cree last longer, good caps, but still not enough heatsinking or tolerant driver. I have 3 fixtures that kill non-incan lights almost instantly and my Highway Robber(landlord) wont replace or let me replace them. Nor does he understand I use 5000k leds that cost a lot because a 5000k incandescent would last 100-200 hrs and spew UV. And no they aren’t all dimmer, one has bad surface and turns black
If anyone wants to go back to incandescent lights for home use, feel free. You will likely get lonely real fast.
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i don’t get it.
flashlights are usually not driven ‘hot’ or ‘hard’
so why would the need special LEDs?
not sure what you are even saying.
how would ‘special flashlight’ LEDs be better?
they would cost more because of small quantities sold - right away i don’t want to pay it
For what it’s worth, I have a red 5mm LED that I installed in an alarm clock back in 1982 that I calculate has around 75,000 hours on it and is still plenty bright. It lights up when the alarm is turned on since the clock didn’t have an indicator for that.
I’ve also had some LED bulbs that were installed in fixtures that went bad within a year or so. But they seem to be more reliable than the CFLs.
Thinking of CFL, back in the mid ’80s I worked for an electric cooperative. Used to go to the county fairs and community groups promoting their use. Sold them at cost for $25 a bulb. Had two of them myself that lasted a solid decade. As the price came down so did the reliability. Don’t think I have more than 2 CFLs left operational. Most failed long before their expected life. A few of the cheap ones lasted but the earlier ones had a much lower failure rate.
Have 4 failed LED bulbs in my office right now. All of them failed within my typical experience of incandescents. One is a Cree and certainly was not cheap. Unless something better comes along I don’t see myself buying anything other than LED bulbs for the house / office. However, they really should be lasting far longer than they are. Pretty much certain that it is not the fault of the LED. Doesn’t matter as it is the LED bulb that provides the light and we seem conditioned for cheap vs quality. Along with that it seems that expensive is not a reasonable indication of quality. The Cree bulb that failed on me was among the most expensive and the shortest life span.
CFL was a great stepping stone technology. They came at a time when people wanted an incan replacement but did not want to pay $50/bulb for LED. I think I have had one CFL fail outright, likely the ballast. I did have dozens turn completely orange from excessive use. They still kept lighting. The only home led bulb that seems to fail consistently on me is the yellow bug lights that I run 12 hrs per day, They seem to last 3-4 years. So that’s about 15,000 hrs instead of the advertised 50,00. Still not bad.
CFLs had their place as an intermediary step, and had benefits in terms of energy consumption, but that’s about it.
The good quality CFLs, like LED bulbs, didn’t start out cheap. I paid something like $15 for a 100W equivalent Philips, which failed during the warranty period. At least they readily sent a replacement without undue hurdles.
The cheap Feit CFLs, as well as some found in dollar stores could have surprisingly decent lifetimes, but when they failed, they did so with some fireworks, after providing some ominous warning signs, like flickering and buzzing. I had one fizzle out and start smoking, but fortunately, I was in the room at the time. Another one, I caught before it got to that state.
But what I hated most about them was the warmup time. They could require anywhere up to a minute to reach full brightness, even indoors, not outdoor environments which were well known to hinder their performance. And, they still must be disposed of as special waste.
Not sad to see them go, and so far, my experience with LED bulbs, even cheap ones, has been much better.