1. Fully compatible with various fast charging protocols such as QC, PD, , SCP, VOOC, etc., meeting the charging needs of the vast majority of electronic devices on the market, achieving worry free charging with one board in hand 2. Supports MPPT function and can be with solar panels 3. Efficient automatic switching of voltage rise and fall, no need to worry about charging the phone due to high battery voltage. Automatic PWM and mode switching achieves efficient voltage rise and fall 4. The product supports various protection mechanisms, such as overcurrent/overvoltage/short circuit/over temperature protection, making it and more reassuring to use 5. Not only does it output fast charging, but it also charges quickly on its own, supporting PD bidirectional fast charging, greatly reducing self charging time and improving user convenience, Weight: 0.05842249943 pounds, Manufacturer: Kueohse