181–190 of 966 posts
Earlier quoted context omitted.
"Good indoor lightning" Man I'd love me some indoor lightning, no matter the cost.
Tesla coils aren't that expensive; go live your dreams:)
There's a lot wrong with LEDs in general and retrofit (E27 bulbs) in particular. In no particular order - LED emitters driven hard for cost reasons, age and fail quickly - Power supplies driven hard for cost reasons, age and fail quickly - Poor CRI and SSRI - Flickering - Dim-to-warm is uncommon - Poorly designed power supplies that age and fail quickly - The same light quality is vastly more expensive to achieve wit…
What’s an example of what you consider to be a high quality led? I’m pretty happy with everything that I have in my home but I’m curious what you’re talking about
I think just like CFLs and incandescents before, quality is going vary and people will need to stick to a brand that works. I've had a lot of success with Cree light bulbs. They seem to have much better light quality than some of the hardware store brands. They definitely cost a bit more, but I had one fail 5 years out and I was able to call Cree up for a replacement. The rep collected a few questions - model, when i…
By being conscious and careful, I believe I've managed to have a pretty flicker free house. Cree has always been my go to non smart bulb, but I have not purchased any (I guess other than dimmable cans) since their acquisition. I was not impressed with their smart ecosystem and returned all of it. The software wasn't ready and the firmware was glitchy.
Another thing mentioned not mentioned in the article, is how bad light looks to pets. Dogs can see the flickering, and with one previous fixture that is now gone, I noticed the dogs getting more anxious when the light was on. They didn't like me moving at them suddenly. I can only imagine how choppy the light made the world to them. Imagine a world where to everyone else things look fine, but to you everything is strobing.
A small link dump of resources I found on hn over the years.
https://optimizeyourbiology.com/light-bulb-database
https://www.lutron.com/en-US/Pages/LEDCompatibilityTool/Comp...
https://www.derlichtpeter.de/en/light-flicker/market-tests/
http://fastvoice.net/led-testberichte/
https://gembared.com/blogs/musings/the-best-daytime-white-li...
And Light Brands / Shopping
There's a lot wrong with LEDs in general and retrofit (E27 bulbs) in particular. In no particular order - LED emitters driven hard for cost reasons, age and fail quickly - Power supplies driven hard for cost reasons, age and fail quickly - Poor CRI and SSRI - Flickering - Dim-to-warm is uncommon - Poorly designed power supplies that age and fail quickly - The same light quality is vastly more expensive to achieve wit…
> LED emitters driven hard for cost reasons > Power supplies driven hard for cost reasons Can you elaborate? What does "hard" mean here, I don't understand.
So the economics just drive cost down no matter what. And even a picky consumer is hard pressed to get what he wants when you go to the bulb aisle at Lowe’s. They literally went from 10 SKUs to 250, with no meaningful standards.
Incandescent bulbs are used for other things than light. Like heating sometimes. Specific applications but I wonder if you'll still be able to get them?
Earlier quoted context omitted.
Not to mention space constraints for power supplies, and cooling the LEDs enough. For all the benefits of LED lights, incandescent bulbs are infinitely simpler.
Simpler and better light, but bad energy efficiency. Although, as was pointed out to me at some point, because LEDs are more efficient, people feel less guilty about having more of them; replacing 1x40 watt bulb with 8x5 watt LEDs means the net result is the same. I've got like 7 cute LED spotlights in my TV closet for example, I wouldn't have had that setup if I was forced to use incandescent lamps.
Earlier quoted context omitted.
Long story short: Its the wiring. Could be a number of reasons but the most common is either its wired to a dimmer or similar which is leaking some current when its "switched off" or its switched on the netural side and the wiring is acting as a capacitor and letting some current flow. EDIT: https://www.youtube.com/watch?v=_bgUy6zA0ts
Short story longer: if the led is connected to a dimmer, it can also be that the led is not-dimmable. Or not compatible with the dimmer.
Earlier quoted context omitted.
> The same light quality is vastly more expensive to achieve with LEDs, even if you account for high electricity prices. In a screw base, maybe. But compare: https://www.digikey.com/en/products/detail/luminus-devices-i... $25 for an excellent 700mA driver, 86% efficient. https://www.digikey.com/en/products/detail/bridgelux/BXRH-30... $3.45 for a very nice, ~2000lm 97 CRI LED, about 99 lm/W. (Efficiency goes up quite…
This is just an anecdote, but I’ve had multiple “10 year” LED bulbs fail after just a year or two. I suspect much of the claims for these bulbs are theoretical as they just don’t hold up, probably for reasons the grandparent poster is pointing out.
LED lights are unfortunately a big marketing scam. Remember when they promised that the will last up to 20 years? Well, when I renovated my house 5 years ago I installed LED lights over my kitchen island - they were so bright that you couldn't look directly at them and it was too hard to see somebody on the other side of the island.. This is no longer true - they are visibly dimmer. In a few more years they will prob…
However, I would always buy standard socket LEDs unless you're really committed to that lighting style.