Item Type: Sine Wave Inverter Material: Aluminum alloy Gross Weight: 1044g / 36.8oz Product Size: 19.5x12.5x5.5cm / 7.7x4.9x2.2in Power: 300W Cooling: Smart air cooling (fans start over 45 degrees) Package List 1 x Inverter 2 x RV Line 1 x Insert Car Fuse 1. Avoid electric shock and keep away from children. The inverter outputs pure DC AC power, and the AC power socket has high AC current, which is potentially dangerous like ordinary household AC sockets. Please keep away, do not touch, as this may cause serious consequences or death. Please keep away from children and intellectual disabilities, otherwise it may be dangerous2. Do not get close to flammable and explosive materials. It is forbidden to use this inverter in places with flammable and explosive gases, such as gasoline hulls or propane tanks, etc.3. High voltage risk, do not disassemble and touch at will4. Do not connect wires at will. This series of inverters is used in off grid solar systems. Both the CND line of the inverter and the electronic equipment should be grounded. The AC output neutral wire should not be considered a GND wire. It is not allowed to connect the AC inverter to the grid. (Example: household 220V AC line). 1Over Load Protection: LED red light turn on , lock, buzzer alarm, DC to AC priority automatically switch to the mains, switch indicator light. Automatically restored automatically switch to the inverter. 2Undervoltage and Overvoltage Protection: LED red light turn on , automatic recovery, buzzer alarm, DC to AC priority automatically switch to power, switch indicator light. Automatically restored automatically switch to the inverter power supply, switch indicator light. 3High Speed Intelligent Cooling Fan: The integrated cooling fan helps reduce heat, and accelerating heat dissipation helps reduce heat. It is normal for the metal shell to heat up when the inverter is working. The inverter uses a built in fan and metal shell to dissipate heat. 4Aluminum Alloy Housing: The inverter housing is made of aluminum alloy, which provides advanced protection against drops and bumps. 5Applications: Suitable for most 220V terminal equipment, such as cars, RVs, boats, yachts, solar panels, small power tools such as water pumps, vacuum cleaners, drills, chainsaws, heaters, water heaters, coffee machines, fans, refrigerators, DVDs, PCs, mobile phone, etc.