1、Clear Display: Real time voltage display, real time power display, beep warning prompt. Support for fault screen display. Compact and easy to store, small size yet large power, compatible with various devices. 2、PC Material: Made of fireproof PC material, compact size, and multiple safety. With a standard cigarette lighter connection cable and 30A fuse built into the cigarette lighter. Multi function inverter for vehicles, with PD, QC4.0, and USB3.1A ports, as well as 2 AC outlet. 3、Efficient Heat Dissipation: Intelligent temperature control, efficient heat dissipation, equipped with intelligent variable frequency silent fan to quickly dissipate internal heat, ensuring stable operating. 4、Multi Device Charging: 6 outputs for multiple devices charging at the same time, including dual AC, USB, and Type C ports, to easily power various electrical appliances. 5、Safety: Safe charging technology can provide overheating, undervoltage, overvoltage charging, overload and short circuit, electric shockguard, which can effectively protect your device and battery. 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. 1 x 300W Power Inverter