Features: 1. Upgraded version of solar panel controller: Compatible with 12V 24V system. This solar charge controller helps you automatically manage the work of the solar panels and batteries in your solar system using a built-in industrial microcontroller. No need to reset when the battery runs out, because it remembers parameters set by the user. You can also charge your phone, tablet, PC with dual USB outputs up to 5V/2.5A. 2. Safe to use: Equipped with overcurrent protection, short circuit protection, reverse connection protection, low voltage, overcharge protection, with full 3-stage PWM charging management. This solar charge controller will help you safely increase system efficiency and extend battery life. 3. LCD Display: The LCD display keeps you informed of status and data. You can also switch modes and parameter configurations, and you can use the controller in different such as home, industry, and business. 4. Multiple electrical protections: Built-in over current protection, short circuit protection, reverse polarity protection, open circuit protection, automatic recovery, and no damage to the controller, providing reliable protection for your equipment. 5. Good heat dissipation: Double MOSFET reverse current protection, low heat generation, all electronic components will heat up during the working process, it is best to shade them for better heat dissipation, and avoid direct sunlight or humid . Rated charging current:100A Battery Voltage:12V 24V Auto Charge reconnect:13V USB output:5V/3A Standby current Less than10mA Working temperature -35C~+60C Warmly Tips: The reverse order applies when deinstalling An improper sequence order can damage the controller All red color voltage X2 , while using 24V system. This solar controller is not waterproof , please install it indoor or out of the rain size: about 130 x 72 x 25mm Material: ABS colour: Black+Blue Package Contents: 1 x Solar Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.