BESTEK Amazon's 1 Power Inverter Brand • The highest average review rating of any charging brand. • Devoted to designing a portable power inverter with high performance to power up multiple loads and major household appliances. • Manufacturing and Providing best and superior quality products with professional customer service for end-users. Product Specification : • Power (2 AC Outlets): 300W Rated, 350W Max, 700W Peak • Input Voltage: 12V DC, Output voltage: 110V~120V • Dual USB Port Output: DC 5V, 3.1A rated. One USB with 1A and the other with 2.1A • Indicator: Green-operation, Red-shutdown • Over Voltage Shutdown: DC 15V-16V, Low Voltage Shutdown: DC 10V-11V • Dimensions are: 4.8" x 3.13" x 1.88" Optimal Use and Precautions : • For DC12V and Car ONLY, not applied for DC 24V and airplane use. • The cooling fan remains on continuously. This means you'll only be able to use it in situations where the car is running. • Avoid placing the inverter into sunlight directly or next to heat-sensitive materials to protect inverter from getting too warm. • Get to know its voltage using range, not allowed high power electric devices such as hair dryer, electric heaters, curling iron and etc. Package List : • 1 x 300W Power Inverter • 1 x User Manual Good to know: • With 18 Months Warranty and Provide Friendly, Easy-to-Reach Support