We've all been there: you wake up in the middle of the night, need to take a quick bathroom break and end up blinding yourself with the brightness of your flashlight. Of course, then it's a nightmare trying to get back to sleep again. If you want to switch it back when you need a brighter setting, such as any outdoor or camping situation, you can do so in a matter of seconds.
Basically, all you need to do is swipe upwards from the bottom of your screen to access the control center. Don't tap the flashlight button, as the brightness levels are changed through 3D touch. Simply press and hold it to activate 3D touch and the brightness options will appear. Low light, medium light, and bright light are your choices. Try low light for midnight bathroom breaks!