Features 【PRACTICAL】Solar controller integrates light control and time-delay control, adjustable charging and discharging parameters, and has a shutdown memory function. 【POWERFUL OUTPUT】Solar panel regulator is designed with dual USB output ports, each with a maximum output current of 2.5A, supporting fast charging of cell phones and other electronic devices. 【LCD】Solar battery charger is equipped with a large LCD screen, clearly displaying the accumulated power generation, discharge power query, temperature and other important information, real-time control of charging and discharging status. 【SAFETY】Solar panel charger has built-in multiple protection mechanisms, including over-current protection, short-circuit protection, open-circuit protection and reverse connection protection, etc, which ensures absolute safety in use and long-lasting protection of the device. 【INTELLIGENT DESIGN】Solar energy controller adopts industrial-grade main control chip and anti-reverse current circuitry to ensure extremely low heat generation during operation, ABS plastic shell has good abrasion resistance, durable Features:【PRACTICAL】Solar  controller integrates light control and time-delay control, adjustable charging and discharging parameters, and has a shutdown memory function. Specification:Item Type: Solar  ControllerMaterial: ABSModel: K1688Colour: BlueSystem Voltage: 12V or 24V automatic adaptation.Maximum Photovoltaic Voltage: 50VUSB Output: 2 USB outputs, 5V 2.5A (maximum).Boost Charging Voltage: 14.4VFloating Voltage: 13.7V (default value, adjustable).Discharge Cut Off Voltage: 10.7V (default value, adjustable).Discharge Recovery Voltage: 12.6V (default value, adjustable).Charging Recovery Voltage: 13VStandby Current: <10mAWorking Temperature: -35~+60℃Maximum PV Input Power10A20A30ARated Voltage(12V or 24V)130W(12V) 260W(24V)260W(12V) 520W(24V)390W(12V) 780W(24V) Package List:1 x Solar  Controller1 x User Manual Note:Recommendations for Safe Use:1. This controller automatically recognizes 12V or 24V. When installing for the first time, please make sure that the battery has enough voltage so that the controller can recognize the correct battery type.2. Install the controller as close to the battery as possible to avoid voltage drop caused by excessively long wires and affect normal voltage judgement.3. This controller is only suitable for various LA batteries (including openings, seals, gels, etc.).4. This controller can only use photovoltaic panels as the charging source. Do not use DC or other power sources as the charging source.5. The controller will heat up when it is running, please pay attention to install the controller on a flat, well ventilated surface. Package List 1 x Solar Charge Controller 1 x User Manual