Feature:   1. Over Load Protection: LED red light turn on, lock, buzzer alarm, DC AC priority automatically switch to the mains, switch indicator light. Automatically restored and automatically switch to the inverter.     2. Under or Over Voltage Protection: LED red light turn on, automatic recovery, buzzer alarm. DC AC priority automatically switch to the mains, switch indicator light. Automatically restored and automatically switch to the inverter power supply, switch indicator light.     3. Aluminium Alloy Shell: The aluminum alloy housing provides advanced protection against drops and collisions. It is normal that the metal shell heats up when the inverter is working.     4. Cooling Fan: High speed intelligent cooling fan helps reduce heat. The fan helps to dissipate heat from the inverter. The inverter uses built in fans and a metal housing for heat dissipation.     5. Wide Application: Suitable for most 220V terminal devices, such as: cars, RVs, boats, yachts, solar panels, water pumps, vacuum cleaners, drills, chainsaws, heaters, water heaters, coffee machines, fans, refrigerators, DVDs, PCs, cell phones, etc.             Specification:               Item Type:   Material: Aluminum Alloy  Weight: Approx. 5100g/179.90oz  Power: 2000W  Cooling: Intelligent  cooling fan (fan starts over 45& 8451;)                       Package List:   1 x     4 x RV Cable       6 x Auto Fuse