Principle of Luminescence 1. The mobile phone case connector is inserted into the mobile phone for the first time, and it stays on for 3-5 minutes. 2. Light up the screen / incoming call / APP push, etc., the phone case will automatically glow 3. A slight delay after turning off the screen, the phone case turns off. If there is an APP running in the background, the lights will be turned off for a while, and occasionally the lights will be turned on 4. If the mobile phone's Bluetooth is always on, it may cause the mobile phone case to be constantly bright, super energy-saving LED light source, and the power consumption is extremely low, which does not affect the battery life of the mobile phone.