Large screen LCD display; Display charging and discharge current; Request generation and discharge of accumulated energy; Temperature display; Light control + delay control; Adjustable charge and discharge settings. The solar charge controller has overcurrent, short circuit protection, open circuit and reverse connections, which are all self-recovered without damaging the controller. This solar charger controller features full 3-step charging management, making charging control more convenient and efficient. This solar panel charge controller uses industrial grade main control chip, backflow circuit, ultra low heat generation. Dual USB output, allows maximum current up to 2.5A, and also supports iPhone charging. Specifications: Item type: solar charge controller. Material: Plastic Application: Suitable for small solar systems for households, industries and trade. System Voltage: 12V/24V Maximum photovoltaic voltage: 23V for 12V battery; 46V for 24V battery. Charging voltage: 14.4V. Floating charging voltage: 13.7V (default value, adjustable) Discharge cut-off voltage: 10.7V (default, adjustable) Discharge recovery voltage: 12.6V (default value, adjustable) Charging recovery voltage: 13V. LigHt controlled ignition threshold: 8V PV panel (light controlled ignition has a delay). Light-controlled shutdown threshold: 8V PV panel (light shutdown with delay). USB output: 2 x USB outputs, 5V/2.5A (maximum). Standby current: <10mA Operating temperature: -35~60. Package includes: 1 x solar charge controller, 1 x user manual Note: 1. This controller recognizes 12V/24V automatically. When installing for the first time, please make sure the battery has enough voltage for the controller to recognize the right type of battery. 2. Install the controller as close to the battery as possible to avoid voltage drops caused by too long wires, which will affect the normal voltage judgment. 3. This controller is only suitable for various lead-acid batteries (including openings, seals, gels, etc. 4. This controller can only use photovoltaic panels as a charge source. Do not use DC or other power sources as a charging source. 5. The controller will heat up when running, please pay attention to install the controller on a flat and well ventilated surface.