Description [The new APP is compatible with Tuya APP intelligent control, saving energy and saving electricity] [Smart Monitor on Electrical Values with Surge Protection] [Auto Distinguish with Adjustable Set-points and AC Test] [Bigger Power:Updated rated power:8KW(110V) or 16KW(220V) and 80A, LCD screen is designed to display voltage and working status [On cloudy or windless when your battery gets low,it will automatically switch to grid power to protect your battery,especially for the condition that when battery voltage is lower than cut off point,it will automatically switch back to battery power when the battery voltage is higher than recovery point,working like an opposite direction UPS with the updated manual switch function for your convenience.] Note: The controller needs to connect the battery, powered by the battery and get battery power data. Model:BAT-80A Rated Power:8kw (Utility Power 100-120V) 16kw (Utility Power 220-240V) Input Voltage:Auto Selection: AC 100-120V or AC 220-240V Output Voltage:Auto Selection: AC 100-120V or AC 220-240V Transfer time:Inverter transfer time to utility power Utility power transfer time to inverter LCD Display:Battery voltage; Power source: Utility power or battery-inverter. System Voltage:Auto Select: 12V or 24V or 48V Battery low voltage transfer set-points:Default: 10.5V/21V/42V, adjustable Battery recovery set-points:Default: 12.5V/25V/50V, adjustable Application:Off grid solar system; Wind generator; Hydro generator Colour:white+gray Material:PC Size:190 x 169.5 x 72.5cm Package Contents: 1 x Controller 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.