4 ms·

The catch is that the sun sets in the evening while LEDs continue to shine blue light.

• fsh 3y ago
  Most people turn off the lights at night.
  • sparky_z 3y ago
    But not at sunset.
    • dingaling 3y ago
      The "cosy warm light makes us sleepy" meme seems to originate in the use of candles for nocturnal lighting prior to the availability of electricity. Their colour temperature wasn't a scientific choice.