How to Use: 1. Open the package to see if it is intact 2. Use according to the instructions Specification: Item Type: Power Inverter Material: Aluminum Alloy Weight: Approx. 813g/28.7oz Type: Pure Sine Wave Inverter Output Voltage Waveform: Pure Sine Wave Power: 3000W Output Voltage: 110V Input Voltage: 12V Package List: 1 x Inverter 1 x Connecting Cable 2 x Battery Clips 1 x Manual