1.off grid solar power inverter 2.low unloading current&high efficiency 3.pefect protection function&small size 1. Specifications:Style:1500w 12v 220v pure sine wave ... Optional, 2.0AInput DC Voltage Range:11-15V DC/22-31V DC Under-voltage Protective: 10.0±0.3V DC/20.0±0.8V ... .9.Principle of heat: Using temperature sensors control cool fan to thermal dissipation.10.Color: red, blue, sliver, black.11. ...