Features 1、Anti Drop: The aluminum alloy housing provides advanced protection against drops and bumps, is sturdy and wear resistant, and has a long service life. 2、Good Heat Dissipation: Aluminum alloy casing and high speed intelligent cooling fans help reduce heat, and integrated cooling fans help reduce heat (note: when the inverter is working, it is normal for the metal casing to heat up, the inverter uses built in fans and metal shell heat dissipation). 3、Overload Protection: LED red light on, lock, buzzer alarm, DC AC priority auto switch to main, switch indicator light, auto resume auto switch to inverter. 4、Under and Over Voltage Protection: LED red light is on, automatic recovery, buzzer alarm, DC AC priority automatically switches to power supply, switch indicator light automatically recovers and automatically switches to inverter power supply, switch indicator light. 5、Output : Suitable for most terminal equipment, cars, RVs, boats, yachts, solar panels, small power tools (pumps, vacuums, drills, chainsaws), heaters, water heaters, coffee machines, fans, refrigerators, DVDs , PC, mobile phone, etc. Item Type: Pure Sine Wave Inverter Material: Aluminum Alloy Gross Weight: 1727g / 60.9oz Product Size: Approx.22.7 x 14.6 x 6.7cm / 8.9 x 5.7 x 2.6in Power: 500W Cooling: Smart air cooling (fans start over 45 degrees) Package List 1 x Inverter 2 x RV Line 2 x Insert Car Fuse