Feature: 1. HIGH ACCURACY CIRCUIT BOARD: High accuracy circuit board adopt fine workmanship, bring clear wiring, good quality current, and longer service life 2. INDEPENDENT POWER SWITCH DESIGN: Independent power switch design possess stable performance, reduce power consumption, and extend service life of the machine 3. SILENT FAN HEAT DISSIPATION: Silent fan heat dissipation with quick evacuation of heat conduction, no heat and more peace of mind 4. REVERSE CONNECTION PROTECTION: DC 5V USB output, the output waveform is a modified sine wave, and the fuse provides reverse connection protection, which is safe and secure 5. MULTIPLE PROTECTION: Come with over voltage (high voltage cut off is a kind of high voltage protection), overload, low voltage, over current, short circuit, and over temperature protection Specification: Item Type: Car Inverter Product Material: Aluminum alloy Continuous Power: 1000W Peak Power: 5000W USB Output: DC 5V Output Waveform: Modified sine wave Reverse Connection Protection: Fuse Input Voltage DC 12V DC24V High Voltage Protection DC 15V ± 1V DC 30V ± 2V Low Voltage Alarm DC 10.5V ± 0.3V DC 21V ± 0.5V Low Voltage Cut Off DC 10V ± 0.3V DC 20.3V ± 0.5V . Package List: 1 x Inverter1 x Cigarette Lighter2 x Wire Clamp1 x User Manual Note: Pay attention to electricity safety.