12V 24V Setup-Free Color Screen Luminous Display Solar Controller PV Solar Charge Controller -Safe use recommendations: 1. This controller is a 12V-24V general-purpose controller, when installing for the first time, please make sure the battery has enough voltage so that the controller can work normally 2. Install the controller as close to the battery as possible to avoid the voltage drop caused by long wires, affecting the normal voltage judgment 3. This controller is suitable for all kinds of lead-acid batteries (including open, sealed, gel, etc.), lithium ternary batteries, lithium iron phosphate batteries, the use of which need to be set up can be 4. This controller can only use photovoltaic panels as a charging source, please do not use DC or other power sources as a charging source 5. The controller will be hot when running, please note that the controller will be installed on a flat, well-ventilated surface -Technical parameters: 1. System voltage: 12V24V automatic adaptation 2. USB output: 2-channel USB output, 5V2A (max) 3. Standby current: less than 10mA 4. Operating temperature: -35- 60 degrees Celsius 5. Weight: about 290g 6. Size: about 18.5 x 9.5 x 4.1cm 7. Warm tips: the screen display of the battery voltage will have a little error, please prevail in reality -Features: 1. Adopting industrial-grade main control chip 2. Large LCD display, adjustable charging and discharging parameters, with power failure memory function 3. Complete 3-stage charging management 4. Built-in overcurrent, short circuit protection, open circuit protection, reverse connection protection, are self-recovery type, does not damage the controller 5. 4-way USB output, the maximum current up to 2A, support for iPhone charging 6. Dual MOS anti-backflow circuit, ultra-low heat generation