This Solar Power Inverter Kit is specially designed for outdoor,12V applications, can use for car, Fan,camping, ship, boat, motor or as an Emergency equipment, and maintain sufficient capacity to protect battery power supply. Features: USB voltage regulator: USB 5V, can charge mobile phones, mobile power, GPS, lights and other electronic devices. The problem of outdoor power shortage. Cigarette lighter: car battery charger, car battery is insufficient and unable to start the problem. Alligator clip: the cost of the 12V battery, to supplement the extra electricity Suitable for outdoor, camping, hiking, climbing, traveling, fishing, desert island survival Waterproof design, IP65 grade, light and portable, easy to carry. Specification 4000W Power Inverter: Power Inverter Color: Black/Yelllow optional Input voltage: DC 10.5V~15V, (When the battery voltage is lower than 10.5V, the inverter is low voltage conservation, when the battery voltage is higher than 15V, the inverter high voltage conservation) Output voltage : AC 110V /220V for your choice Output frequency is: 50Hz for 220V model /60Hz for 110V model. Peaks Power : 4000W Rated power :300W Output waveform: Modified sine wave. Solar panel power: 20W Solar cell: Monocrystalline silicon Solar panel size: 420*280*3mm Solar panel operating voltage: 18V Solar panel open circuit voltage: 21.6V Solar panel short circuit current: 1.11A (Max) Output port: Dual USB, DC5521 female Product features: integrated 5V voltage regulator module Product use: charge 5V devices such as mobile phones and sports cameras, and charge 12V car batteries such as cars and boat Package Contents: 1*car power inverter 1 *user manual, 1*Standard Kit+Controller