Input voltage range: DC 12V (11V-14V) Output voltage: AC110V/ 220V Output frequency: 50HZ USB output current: 5VDC/2.1A Output waveform: corrected sine wave Overheating protection: 65 Low power cut off: 10v High power cut off: 15v Unloading current: less than 0.9A Conversion efficiency:>90% Specifications: 1. [High power output]: It is compatible with all kinds of electrical appliances, adopts intelligent adaptation technology, and widely supports most digital and household products on the market 2. [Buzzer reminder]: When the inverter is used, when the power supply battery is insufficient and the voltage is not enough, the inverter will send out a drip warning to protect the electrical appliances from being damaged due to insufficient voltage 3. [Pure copper core power cord]: elastic alligator clip, thickened pure copper core, low energy consumption, stable transmission 4. [Thickened aluminum alloy shell]: excellent heat dissipation comes from the design and materials. The concave convex surface design+aluminum alloy shell effectively improves heat dissipation. The thickened aluminum alloy shell greatly improves heat dissipation and compression resistance 5. [Intelligent digital display large screen]: real-time display of output current/voltage Package Included: 1 * Inverter 2 * Battery clip 1 * Cigarette lighter plug 1 * Instructions