2025-02-26 00:00:00 Led Flashlight - Flash Call: FLASH alerts for FLASH notifications, incoming calls, and SMS messages. Mobile flashlight application When the phone receives a notification or answers a call, the flash lights go on and flash. Flashing lights for incoming calls is useful when you're in a dark place or in a meeting where you don't want to hear ringing or vibrations. Imagine you're at a party with loud music or at night and can't hear the ringtone or feel your phone vibrate.