Solar Charge Controller, Battery Type Flooded Lead Acid, Gel Cell, Lithium Ion, Sealed Lead Acid, Max. Solar Input Voltage 55V DC, Max. Current 40 A, No-Load Loss Less Than 13mA @ 12V DC, Less Than 15mA @ 24V DC, Max. Battery Charging Voltage 24V DC, IP Rating IP30, Height 4 in, Width 6 1/2 in, Depth 17 3/4 in, Interface Bluetooth, Operating Temp. -13 Degrees to 131 Degrees F. This item has been restricted from sale in the following state (s): []