Specification: * Rated input voltage: 12VDC * Input voltage range: 10-16VDC * Standby input power:<10w * Rated output voltage: 4000W * Peak power: 8000W * Output voltage: 220VAC 10% * Frequency: 50Hz 1Hz * Wave form: Pure sine wave Main Advantage: * Pure sine wave output (THD<5%) * High efficiency * Multi protection functions * Built-in high speed cooling fan * Saving-energy * 1% free spare parts with order + 1 years global warranty * Can be used for various kind of electronic products with AC input. * Outside shell make of aluminum alloy, good to dissipate heat to ensure the unit's lifespan more long than other. Protect functions: * Over-load protection * Over-voltage protection * Low-voltage protection * Buzzer Alarm protection * Short-circuit (Optional) protection * Over-temperature protection Applicable for: ( Solar/Wind/Home System ) 1. Travel set equipment 2. Industrial equipment 3. Office equipment 4. Kitchen equipment 5. Household electrical equipment 6. Power tools Warranty: 12 months Quality stanstard: CE, RoHS Contact us get more infomations. Skype: hanyinyan315 E-mail: sales1@gzqueenswing.com