What color light is best for your eyes at night？

Blue light is the type of light that is most likely to disrupt your sleep and affect your overall health if you're exposed to it at night. This is because blue light can suppress the production of melatonin, a hormone that helps regulate sleep.

For this reason, it's generally recommended to use warm-colored lights with a color temperature of around 2700K to 3000K at night, rather than cool blue lights with a higher color temperature. Warm-colored lights produce less blue light, making them less likely to interfere with your sleep and circadian rhythm.

Additionally, using dimmer lights or reducing overall light exposure in the hours leading up to bedtime can also help signal your body that it's time to wind down and prepare for sleep.

You may also consider using blue light-blocking filters or glasses if you need to use electronic devices at night.