uses your screen's light to convert your device into a handy flashlight, owns brightness control and has an elegant design. Screen flashlight also offers more functionality than a common flashlight, as it has (an international code for help) mode. - Flashlight - Strobe. - SOS. - RGB mode for screen color customization. - Preset screen colors. - Strobe frequency changeable. - Brightness control. - Sleep timer. some people may be sensitive to flashing lights. Photosensitive epilepsy (PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns.