300W Car Power Inverter Modified Sine Wave Car Inverter with 2 Outlets QC4.0 PD Fast Charging Voltage Digital Display Adapter Item Type: 300W Car Power Inverter Material: PC Weight: Approx. 414.00g / 14.6oz Size: Approx. 160x95x36mm / 6.3x3.74x1.42in Inverter Output Power: 300W (Maximum) QC4.0 Output: 20W (Maximum) PD Output: 20W (Maximum) USB Output: 15W (Maximum) Waveform: Modified Sine Wave Display: Large Color Screen Buzzer: Yes Undervoltage Guard: <10V Overvoltage Guard: >15.5V Inverter Side Operating Status Indicator Detailed Instructions: 1. Normal: steady on 2. Output Short Circuit: blink 1 time, off for 2 seconds, buzzer beeping, after 5 seconds restart 5 times to judge if the fault is not eliminated, enter loop. 3. Output Overcurrent: blink 2 times, off for 2 seconds, buzzer beeping, after 5 seconds restart 5 times to judge if the fault is not eliminated, enter loop. 4. Output Overvoltage: blink 3 times, off for 2 seconds, buzzer beeping, after 5 seconds restart 5 times to judge if the fault is not eliminated, enter loop. 5. Output Undervoltage: blink 4 times, off for 2 seconds, buzzer beeping, after 5 seconds restart 5 times to judge if the fault is not eliminated, enter loop. 6. Output Overtemperature: blink 5 times, off for 2 seconds, buzzer beeping, after 5 seconds restart 5 times to judge if the fault is not eliminated, enter loop.