Package Included:1x Inverter1x C--igarette Lighter1x Alligator Clip1x User Manual Specification:Name: InverterPower: 4000WType: 12V to 220VOutput Voltage: 220VInput Voltage: 12VOutput Waveform: Modified Sine WaveIndicator light: Green power indicator, red fault indicatorCooling: FanThe shell maximum working temperature: <75℃Size: 170*91*55mm Features:- A truly powerful inverter. Especially suitable for campsites, road trips or any place where DC to AC inverters are required.- This inverter can safely power your TV, air bed pump, or just charge your laptop, mobile phone, tablet,etc. Make sure you stay connected while you are traveling with the world.- Ultra-compact and lightweight: The strip-sized design saves space and is easy to store and carry.- Rugged construction: Durable housing provides advanced fall protection. An integrated cooling fan helps reduce heat and prevent shortages.- Apply in car, marine,solar electric power/wind electric power, motive office,emergency work, outwork.