(Those of you hoping for another way to save your battery life will sadly be disappointed, unfortunately the screen 'dimming' is actually just a filter, not a physical dimming of your screen. Your screen will immediately dim from here, you can do more minor brightness adjustments from Control Center. How to make your iPhone darker than the lowest Brightness setting But there's a better way, thanks to Apple's Accessibility settings. In short: When you need to use your iPhone or iPad without blinding yourself or nearby neighbors, sometimes iOS' lowest Brightness setting just doesn't cut it. It is designed to reduce eyestrain while reading documents online when dark mode is not supported. It is meant to be used with websites that do not support the native dark theme. This is especially true for iPad pros and iPhone users alike who may need their device for use in darkened theaters or while surveying the night sky. This extension reduces the screen brightness level for both daytime and nighttime periods based on user-defined values. Much as I appreciate the iPhone's blindingly bright LED screen in direct sunlight, it's not always the nicest sight to see in a nighttime environment.
