Features EFFICIENT AND STABLE OUTPUT: Our solar panel controller is widely applicable to various solar energy applications. WIDE APPLICATION: 12V and 24V gel, sealed, rich liquid, AGM battery can be used. The controller can fully meet your requirements for home photovoltaic systems (including home lighting systems). EASY TO USE: Built in industrial microcontroller, large LCD display, all parameters adjustable. You can make adjustments according to your own needs. MULTI PROTECTION: This controller is equipped with 4 level PWM charging management. Built in short circuit protection, open circuit protection, reverse protection, and overload protection. Dual MOSFET reverse current protection, low heating. IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency! Specification: Item Type: Solar Panel Controller Material: PVC Product Size: Approx. 14 x 8 x 4cm / 5.5 x 3.1 x 1.6in Application: For charging solar photovoltaic cells Voltage: 12V 24V Current: 30A Package List:1 x Controller Package List 1 x Controller