Features Upgraded Solar Panel Controller: Automatically identify 12V/24V system voltage. 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. There is no need to reset when the battery runs out, as it remembers various parameters set by the user. Safe to Use: Dual MOS anti-backflow circuit, low heat generation. Equipped with overcurrent protection, short circuit protection, reverse polarity protection, low voltage, overcharge protection, and has full 3-stage PWM charging management. This 30A solar charge controller will help you safely increase system efficiency and extend battery life. Wide Range of Applications: let you know the status and data through the LCD display. You can also easily switch modes and parameter configuration, you can use the controller in different places such as home, industry, business, etc. Multiple Intelligent Protections: Built-in overcurrent protection, short circuit protection, reverse connection protection, open circuit protection, automatic recovery, no damage to the controller, and reliable protection for your equipment. Easy to Install: Terminal blocks are marked with corresponding icons for connecting batteries, solar panels and DC loads. The solar controller can clearly indicate the status and data, and can easily switch the mode and parameter configuration. Features: 1. Automatically identify system voltage of 12V/24V. 2. Wiring terminals has corresponding icon marks for connecting battery, solar panel and DC load. 3. Dual MOS anti-backflow circuit, low heat production. 4. Full 3-stage PWM charge management. 5. Built-in short circuit protection, open circuit protection, reverse connection protection, overcurrent protection. Specification: Model: CM3024Z Max discharge current: 30A Batt voltage: 12V/24V auto Charging Type: PWM Material: PVC Color: Black Size: Approx. 190 x 90 x 50mm / 7.5 x 3.5 x 2.0in Weight: Approx. 373g / 13.1oz Package list: 1 x Solar Charge Controller 1 x Manual Note:  1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List