Upgraded Solar Panel Controller: Compatible with 12V/24V systems. This solar charge controller automatically manages solar panels and batteries using a built-in industrial microcontroller. No need to reset when the battery runs out; it remembers user-set parameters. Charge your phone, tablet, or PC with dual USB outputs up to 5V/2.5A. Safe to Use: Equipped with over-current, short-circuit, reverse connection, low voltage, and overcharge protection, featuring full 3-stage PWM charging management. Safely increase system efficiency and extend battery life. LCD Display: The LCD screen provides real-time status and data. Switch modes and configure parameters for various environments like home, industrial, and commercial settings. Multiple Electrical Protections: Built-in over-current, short-circuit, reverse polarity, and open-circuit protection with automatic recovery, ensuring reliable protection for your equipment. Excellent Heat Dissipation: Dual MOSFET reverse current protection, low heat generation. For optimal heat dissipation, shade electronic components and avoid direct sunlight or humid environments. Rated Charging Current: 30A Battery Voltage: 12V/24V Auto Recharge: 13V USB Output: 5V/3A Standby Current: Less than 10mA Operating Temperature: -35C~+60C Important Tips: The reverse order applies during uninstallation. An incorrect sequence can damage the controller. All red color voltage X2 when using a 24V system. This solar controller is not waterproof; install it indoors or away from rain. Size: approx. 130 x 72 x 25 mm Material: ABS Color: Black+Blue Package Contents: 1 x Solar Controller Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The permissible measurement error is +/- 1-3 cm.