Turning off the lights and other electric appliances when you aren't using them is one of the most basic steps you can take ...

You can turn the ambient light sensor on and off. Hot Key. ... Press the "Fn" key and press the up or down arrow keys to disable ALS and manually increase or decrease brightness.

Install time and motion sensors. The best way to reduce light pollution is to turn lights off completely when they’re not needed. This will also save money on your energy bill.

Here's how to turn off blue light on your iPhone, either on a day and night timer, or all the time. Check out the products mentioned in this article: iPhone 11 (From $699.99 at Best Buy) ...