Feature 1ADJUSTABLE PARAMETERS: The solar controller adopt industrial main control chip, large screen LCD display, charge and discharge parameters can be adjusted 2HIGH EFFICIENCY AND INTELLIGENT: Complete three phase PWM and MPPT charging management to achieve efficient and fast intelligent charging and effectively extend the service life of the battery 3MULTIPLE PROTECTION: Built in overcurrent or short circuit protection, open circuit protection, backconnection protection, all are self recovery type, do not damage the controller 4HUMANIZED DESIGN: Adopt double MOS prevent backflow circuit, bring ultra low calorific value, safe and stable 5WIDE APPLICATION: PWM solar charge controller is easy to install and operate, Intuitive LCD display that can clearly indicate the status and data, suitable for home, industrial, commercial etc.SpecificationItem Type: PWM Solar Charge ControllerSystem Voltage: 12V 24V adaptiveMaximum Photovoltaic Voltage: < 50VFloating Charging Voltage: 13.7V(default, adjustable)Discharge Cutoff Voltage: 10.7V(default, adjustable)Discharge Recovery Voltage: 12.6V(default, adjustable)USB Output: 5V 3AStandby Current: <10mAOperating Temperature: -35~+60Color: White .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x PWM Solar Charge Controller1 x User ManualNote1. The controller is 12V 24V automatic. When installing the controller for the first time, please ensure that the battery has enough voltage so that the controller can identify the correct battery type.2. Install the controller as close to the battery as possible to avoid voltage drop caused by too long wires, which affects the normal voltage judgment.3. This controller is only suitable for all kinds of acid batteries, lithium batteries, 12V rechargeable batteries (including openings, seals, colloids, etc.).4. Battery type description: B1 is acid battery (12V 24V automatic identification); B2 is lithium ion battery (3 series 11.1V lithium battery); B3 is a lithium iron phosphate battery (4 series of 12.8V), the default factory setting is B1.5. This controller can only use the photovoltaic panel as the charging source. Do not use DC or other power sources as the charging source.6. The controller will be hot when running, please pay attention to install the controller on a smooth, well ventilated surface.