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As far as I know, there isn't a law banning incandescent lamps. The law stated that such lighting needs to achieve a certain level of efficiency or greater, whi
by tasty_freeze 4y ago
As far as I know, there isn't a law banning incandescent lamps. The law stated that such lighting needs to achieve a certain level of efficiency or greater, which in effect banned existing 1% efficient incandescent lights.
> It be great to have efficient incandescent light and put the failed promises of LED longevity behind us.
In my experience, the main failure mode of LED bulbs is the power supply -- they engineer every penny out of them even at the cost of reliability. Second, nearly all bulbs are dimmable, which complicates the power supply, because customers faced with dimmable vs non-dimmable will pick the dimmable one.
Another factor is if you read those claims about 20 year lifetimes and such, often there is a footnote saying something like "assuming it is on for 3 hours a day or less".
Finally, you are assuming that this new technology won't suffer the same fate as the LED bulbs. If they take off, they will be cost reduced at the expense of longevity. I saw the same thing happen in the era of floppy disks -- over time the price was reduced by a factor of 20 but reliability went down in parallel.
- kurthr 4y agoIt's the pure penny pinching form of Muntzing (just cutting parts out to see what still works). https://en.wikipedia.org/wiki/Muntzing https://en.wikipedia.org/wiki/Muntzing There seem to be two dominant pop commercial successes, those where brand means everything and cost is increased well beyond any utility to signal wealth, and brand AND reliability mean nothing (because like your mattress it'll be a few years later anyway) which is just a race to the bottom.
- elihu 4y agoMy heuristic is to just buy LEDs made by Phillips or GE, since invariably any generic or store-brand LED I've tried seems to lack rectification and/or filtering and stobes at 60 or 120 hz. I haven't tried any fancy/expensive "smart" programmable bulbs, but plain ones I do get seem pretty reasonably priced.
- Spooky23 4y agoI have a 60w Phillips Endura LED bulb that has been continuously lit since about 2014. Quality parts last.
- leobg 4y agoIt’s an aptly named product then. Quite rare these days.
- Spooky23 4y agoIIRC, it was a product designed for a huge Federal RFP. So it was built to meet a meaningful standard. The facilities guys at my former employer were very excited about it as they did an LED pilot previously that didnt go well.
- Maursault 4y agoUndoubtedly it is not producing the same color spectrum as new, as phosphors fade over time, its blue spike is getting wider and taller, so it is always producing more and more blue light, slowly permanently blinding you while disrupting your circadian rhythms, increasing your chances of having diabetes and heart disease, and taking years off your life. But at least you saved a buck.
- fsh 4y agoSunlight contains much more blue light than the output of any LED bulb. This scaremongering about blue content has no scientific backing at all.
- Maursault 4y agoOnly because the sun is much brighter than any LED, but when comparing the colors of the spectrum output, the sun's color spectrum is flat compared to LED, which has what is known as a "blue spike." Most of the light a high efficiency LED outputs is blue because all high efficiency LED are blue LED. Only phosphors allow it to output other colors. And the more the LED is used, the more the phosphors fade, the more the output spectrum shifts to blue. And there is more and more scientific backing showing the problems with LED becoming more concerning. Here is a summary of one scientific study.[1] There are myriad more, and more and more are being published. [1] https://lightaware.org/2018/01/led-lighting-may-be-contributing-to-depression-diabetes-obesity-and-cancer-study-finds/ https://lightaware.org/2018/01/led-lighting-may-be-contribut...