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Non-dimmableness is only one of the problems. For me the biggest problem is that all LEDs are blue, despite of any light-filters. I can not use it in bedroom wh

Non-dimmableness is only one of the problems. For me the biggest problem is that all LEDs are blue, despite of any light-filters. I can not use it in bedroom when I use to read books before sleep and in bathroom when my aestetical needs of seing bare body have been not met. I have even changed my place of living since Sodium lamps have been replaced with LEDs on my old street. And if I need a really bright light or really high CRI then I'm going to use MHL. My point is that LED is not really a good source of light except of if I need energy-efficient source and/or with high tolerance to often on/off.

Waterluvian 4y ago
My home is full of bright, warm yellow/orange LEDs. I also have a lot of "sunlight" LEDs which I'll describe as "white" and I LOVE them for big rooms and making daytime feel like daytime. Great for my office. I recall blue being a big problem when LEDs for homes were new, but when I bought a house 3 years ago and revisited it, I was delighted to find so many very solid options. Dimmable, non-flicker, warm LED bulbs. The Canadian government also chipped in with my tax dollars so they were about 50 cents each. My one complaint is that even the fancier, pricier ones seem to burn out too. In 3 years I've had to replace 4 ceiling bulbs of about 50 (the builder went nutty with recessed ceiling lights). I think they're just driven really harshly by the A/C.
- eimrine 4y ago
  “for the invention of efficient blue light-emitting diodes which has enabled bright and energy-saving white light sources” This is what drives your "warm" lamps. No deep red at all, man.
  - Waterluvian 4y ago
    I guess my lying eyes deceive me. By filtering out other wavelengths I’m left with all this warm light rather than nothing.
rini17 4y ago
For reading in the bedroom I use RGB strip behind furniture, preset to yellow. Diffuse light, no blue at all. Of course poor color rendering but I don't mind for this use case.
- eimrine 4y ago
  > no blue at all https://news.ycombinator.com/item?id=35373754 https://news.ycombinator.com/item?id=35373754
  - rini17 4y ago
    That is true only for white LEDs. The RGB strip does not have them (there are some that include white LEDs but not this one). If you set it to yellow, only pure red and green elements are on, blue elements are completely off.
    - eimrine 4y ago
      There is no such thing as a pure red LED. Those are blue ones but with light filters. If you don't see blue which is actually present and you see deep red which is actually absent then maybe consider yourself as brainwashed by marketologists.
      - rini17 4y ago
        No.
      - seszett 4y ago
        I think you misunderstand the fundamental difference between "white" LEDs which are generally a blue LED associated with various phosphors that convert the monochromatic blue light into a mostly continuous spectrum going from blue to red, and the monochromatic R, G and B LEDs that each emit a fairly narrow band that is either red (with no blue or green at all) green (no blue or red) or blue (no red or green). Blue LEDs are used to create white because it's easier to convert blue to lower frequencies. But red and green LEDs absolutely exist. LEDs exist for a wide range of narrow wavelengths, including for example infrared LEDs that emit at 940 nm without a trace of blue (obviously, otherwise they would be visible!).
jwestbury 4y ago
> For me the biggest problem is that all LEDs are blue, despite of any light-filters. It's likely that you're buying bulbs with a low CRI. Unfortunately, this is poorly-marketed (and CRI still doesn't capture certain edge cases). I'm a fairly serious amateur photographer, and until I moved overseas, I'd set up a room as an edit and print studio, with a pro-grade photo printer. I specifically sourced high-CRI bulbs, and found that my eye couldn't tell the difference between my room at night (with a measured color temperature of 4500K or so) and my room during the day with the blinds open (with about the same color temperature), even looking at a variety of photo prints.
ThePowerOfFuet 4y ago
Are you saying that you moved to a new house because of a change of streetlamps outside your old house?

Waterluvian 4y ago

My home is full of bright, warm yellow/orange LEDs. I also have a lot of "sunlight" LEDs which I'll describe as "white" and I LOVE them for big rooms and making daytime feel like daytime. Great for my office. I recall blue being a big problem when LEDs for homes were new, but when I bought a house 3 years ago and revisited it, I was delighted to find so many very solid options. Dimmable, non-flicker, warm LED bulbs. The Canadian government also chipped in with my tax dollars so they were about 50 cents each. My one complaint is that even the fancier, pricier ones seem to burn out too. In 3 years I've had to replace 4 ceiling bulbs of about 50 (the builder went nutty with recessed ceiling lights). I think they're just driven really harshly by the A/C.

eimrine 4y ago
“for the invention of efficient blue light-emitting diodes which has enabled bright and energy-saving white light sources” This is what drives your "warm" lamps. No deep red at all, man.
- Waterluvian 4y ago
  I guess my lying eyes deceive me. By filtering out other wavelengths I’m left with all this warm light rather than nothing.

rini17 4y ago

For reading in the bedroom I use RGB strip behind furniture, preset to yellow. Diffuse light, no blue at all. Of course poor color rendering but I don't mind for this use case.

eimrine 4y ago
> no blue at all https://news.ycombinator.com/item?id=35373754 https://news.ycombinator.com/item?id=35373754
- rini17 4y ago
  That is true only for white LEDs. The RGB strip does not have them (there are some that include white LEDs but not this one). If you set it to yellow, only pure red and green elements are on, blue elements are completely off.
  - eimrine 4y ago
    There is no such thing as a pure red LED. Those are blue ones but with light filters. If you don't see blue which is actually present and you see deep red which is actually absent then maybe consider yourself as brainwashed by marketologists.
    - rini17 4y ago
      No.
    - seszett 4y ago
      I think you misunderstand the fundamental difference between "white" LEDs which are generally a blue LED associated with various phosphors that convert the monochromatic blue light into a mostly continuous spectrum going from blue to red, and the monochromatic R, G and B LEDs that each emit a fairly narrow band that is either red (with no blue or green at all) green (no blue or red) or blue (no red or green). Blue LEDs are used to create white because it's easier to convert blue to lower frequencies. But red and green LEDs absolutely exist. LEDs exist for a wide range of narrow wavelengths, including for example infrared LEDs that emit at 940 nm without a trace of blue (obviously, otherwise they would be visible!).

jwestbury 4y ago

> For me the biggest problem is that all LEDs are blue, despite of any light-filters. It's likely that you're buying bulbs with a low CRI. Unfortunately, this is poorly-marketed (and CRI still doesn't capture certain edge cases). I'm a fairly serious amateur photographer, and until I moved overseas, I'd set up a room as an edit and print studio, with a pro-grade photo printer. I specifically sourced high-CRI bulbs, and found that my eye couldn't tell the difference between my room at night (with a measured color temperature of 4500K or so) and my room during the day with the blinds open (with about the same color temperature), even looking at a variety of photo prints.

ThePowerOfFuet 4y ago

Are you saying that you moved to a new house because of a change of streetlamps outside your old house?