Flashlight

Why Your Phone’s Flashlight and Camera Flash Can Have Different Brightness

A phone’s rear light can seem surprisingly different depending on how you use it. The flashlight may provide a steady but moderate beam, while the camera can produce a brief flash that looks more intense. On some phones, the flashlight also offers several brightness levels. These behaviours make more sense once you stop thinking of the light as a bulb with one fixed brightness. It is an electronically controlled light source that the phone can operate in different modes. The camera and flashlight have different jobs, so the phone does not necessarily drive the light in exactly the same way for both.