1. Multi-Function Inverter: This lithium battery inverter converts 18V-21V DC power to 220V AC, making it perfect for outdoor work and small household appliances. 2. Intelligent Fast Charging: Featuring a dual motor design, the electric inverter ensures rapid charging, significantly enhancing charging efficiency. 3. Safety Protection: Equipped with an upgraded smart chip, the outdoor emergency operation inverter offers over-temperature protection and constant temperature charging for use. It includes eight built-in intelligent safety protection systems that automatically distribute current and voltage, enhancing electrical safety. 4. Heat Dissipation Design: The multi-function household smart transformer boasts a design for easy portability and storage, ideal for outdoor use. Its convection heat dissipation design ensures it remains cool even during prolonged charging, ensuring safe operation. 5. Wide Application: Suitable for all small appliances under 120 , the outdoor work inverter is perfect for charging phones, laptops, digital products, small fans, LED lights, and more. Note:This product is only suitable for low-power electrical products Power: 120W ( power 300W) Input voltage: DC18-21V Output voltage: 220V Quiescent current: 0.05A Frequency: 50Hz 2 USB + 1 TYPE-C interface + 1 220V output socket Colour:B:Yellow Material:ABS+Metal Package Contents: 1 * Inverter(Batteries not included) 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.