cool computer no 3 Enable 'Night Mode' on all your devices

 If you often work at night or simply like to read on a screen before going to sleep, this can be a game changer. We recommend using F.lux on both Mac and Windows, although both operating systems have some support for this already built-in. Same goes for your mobile devices.

download flux here https://www.techspot.com/downloads/5606-f-lux.html