Check the listing for details. 60A Solar Panel Battery Charge Controller 12V/24V LCD Regulator Auto Dual USB US. Color: Blue, Condition: New. Listed at 12.15 USD. Product Description Features Thlevel solar charge controller is a kind of intelligent, multi-purpose solar charge and discharge controller. Solar Charge Regulator can fully meet your home Photovoltaic system (including home lighting system) requirements. Connection steps: Connect the battery to the charge regulator. Connect the solar panels to the charge regulator. Connect the consumer to the charge regulator. NOTE: The reverse order applies when deinstalling. The wrong connection sequence will damage the controller. Specifications Load: Light Control System Voltage: 12V 24V Max Solar input(Solar Panel):36V(24V battery) 18V(12V battery) Max input power: 390W(12V system); 780W(24V system) Equalization: 12.6V(sealed) 14.2V(Gel) 14.6V(flood) Float charge: 13.7V(defaul,adjustable)，12.0-15.0V Discharge stop voltage: 10.7V(defaul,adjustable)，9.0-11.5V Discharge reconnect voltage:12.5V(defaul,adjustable)，11.0-13.0V Rated current: 60A Self-consume:(2)Solar panels ---> (3)DC load. Disconnect order is (1)DC load --->(2)Solar panels ---> (3) Battery Q: What battery type is this controller supported? A: Pay attention to this regulator is only suitable for lead acid batteries: OPEN, AGM, GEL, not for nickel hydride, lithium, ions, or other batteries. Q: Why the LCD screen become blank? A: When the battery voltage is too low, the controller will stop to output ( ≦ 8V, controller turns itself off, LCD is blank, ≦ 10.7V (default), 12V output ports are not available); after the solar panels charging, it will re-output when the battery will return to 12.6V(default). Q: Why does the controller display 14.4V? A: If the solar charge controller is set to 12V, when the battery voltage reaches 14.4V or 14.5V, the solar charge controller will stop charging and play a protective role. If it does not enter the floating state, please don't worry, the solar charge controller has a voltage limit value, will be not charge if the battery voltage reaches to 14.4V or 14.5V. Q:How is it set to charge battery during the day and turn on at dusk? A: Press the [DOWN]button to ON/OF load manully at main display （The load can't be switched manually in the light control state.） There are 3 options for the working mode. Mode 1 : [24HR] >> Load output 24 hours Mode 2 : [1-23HR] >> Load on aftersunset and dosed after setting hours Mode 3 : [0H] >> Dusk to Dawn