1. Intelligent dual digital display inverter, support solar panel to switch battery. 2. Protection function: overload, over temperature, high voltage, low voltage, reverse connection, short circuit 3. Intelligent temperature control, 4USB output interface, universal national standard plug, second original car cigarette lighter socket, dual display, can be used for electrical appliances less than 380W (Except for inductive load electrical and motor products) 4. The high conversion rate can maximize the energy conversion and make it more durable, more energy-efficient and safer. 5. The buzzer device reminds that when the inverter is in use, when the power supply battery is insufficient and the voltage is insufficient, the inverter will emit a buzzer warning sound to protect electrical appliances from damage due to insufficient voltage. 6. Parameters: Starting peak power: 500W Continuous power: 380W Digital display: input/output voltage Input voltage: 12V Output voltage: 220VAC/50Hz +/- 3Hz USB output: 5VDC-2.1A/1A/2.4A/1A No-load current: less than 0.9A Conversion efficiency: greater than 90% 7. Equipped with cigarette lighter and alligator clip power cable. 8. Style: modified sine waveSpecification: Package Weight One Package Weight 0.87kgs / 1.92lb One Package Size 24cm * 15cm * 7cm / 9.45inch * 5.91inch * 2.76inch Qty per Carton 30 Carton Weight 27.45kgs / 60.52lb Carton Size 48cm * 42cm * 38cm / 18.9inch * 16.54inch * 14.96inch Loading Container 20GP: 348 cartons * 30 pcs = 10440 pcs40HQ: 808 cartons * 30 pcs = 24240 pcs