Feature: 1. Intelligent solar charge discharge controller, built‑in industrial microcontroller, easy to operate. 2. Equipped with LCD display, clearly display the status and data, convenient for switching modes and parameter configuration. 3. It can full satisfy your home photovoltaic system and can flexibly set various control parameters. 4. It supports full 4‑level PWM charging management, which can meet your various application requirements. 5. Built‑in short circuit protection, open circuit protection, reverse connection protection, overload protection function. 6. Support dual reverse current protection, low heat generation, automatic memory function, long service life. Specification: Condition: 100% Brand New Item Type: Solar Charge Controller Material: ABS USB Output: 5V Rated Voltage: 12V 24V Automatic (If your battery is 12V, the maximum solar panel input is 25V 650W, if your battery is 24V, the maximum solar panel input is 50V 1300W) Current: 50A The regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL Not Applicable: Ni-MH, Li-ion or other batteries Application: Home, Courtyard, Outdoor, Commercial, etc. Weight: Approx. 158g / 5.6oz Product Size: Approx. 13.6x7cm / 5.4x2.8in . Package List: 1 x Solar Charge Controller1 x Manual Note: 1.The reverse order applies when unloading. Improper order will damage the controller.2.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.3.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.