1、12V 24V Compatible: This solar charge controller is easy to install and operate, can intelligently identify 12V and 24V, with 5V dual USB ports, could also charge for mobile phone, tablet, PC. 2、Multifunctional LCD: With an intuitive LCD that clearly indicates status and data, the modes and parameter configurations can be switch, perfectly prevent the lithium battery from overcharge and discharge. 3、MPPT Charging: Adopt three stage MPPT charging mode of direct charging, boost charging and floating charging, realize efficient and fast intelligent charging, effectively prolong the service life of the battery. 4、Multi Protections: Built in overcurrent, short circuit, reverse connection, open circuit protection, automatic recovery function, no damage to the controller, very reliable. 5、ABS Housing: The controller adopts industrial ABS plastic shell, flame retardant, has high strength, not easy to damage, compact and easy to carry, suitable for home, industry, business, etc. 1 x Solar Charge Controller1 x Manual Item Type: Solar Charge ControllerMaterial: ABSParameter:System Voltage: 12V 24V intelligent identificationMaximum Photovoltaic Voltage: When 12V battery: up to 23V, when 24V battery: up to 46VBoost Charging Voltage: 14.4V (12V system, if it is 24V system, please multiply by 2)Float Voltage: 13.7V (default value, adjustable) (12V system, if it is 24V system, please multiply by 2)Discharge Cut Off Voltage: 10.7V (default value, adjustable) (12V system, if it is 24V system, please multiply by 2)Discharge Recovery Voltage: 12.6V (default value, adjustable) (12V system, if it is 24V system, please multiply by 2)Charging Recovery Voltage: 13V (12V system, if it is 24V system, please multiply by 2)Light Control Light On Threshold: Photovoltaic panel 8V (has a delay) (12V system, if it is 24V system, please multiply by 2)Light Control Light Off Threshold: Photovoltaic panel 8V (has a delay) (12V system, if it is 24V system, please multiply by 2)USB Output: 2 channels USB output, 5V 2.5A (maximum)Standby Current: <10mAWorking Temperature: -35℃ to +60℃