Features Industrial Grade Solar Controller: Equipped with an industrial main chip and 16AD sampling accuracy, this solar charge controller provides accurate real-time discharge current display and power generation information, ensuring optimal solar energy utilization. High Charging Efficiency: The MPPT solar controller features high charging efficiency and automatic focus loading, with detection charging uninterrupted and two-way focus tracking, maximizing the solar power conversion for RVs, trailers, and boats. Intelligent Protection Functions: This solar regulator charge controller offers built-in overcurrent protection, short circuit protection, back connection protection, open circuit protection, and automatic recovery, ensuring the safety and longevity of the connected solar panels and batteries. Innovative MPPT Technology: The solar charge controller adopts innovative MPPT technology, achieving tracking efficiency of up to 99% and increasing efficiency by 10%-30% compared to ordinary controllers, providing significant energy savings. Premium ABS Material: Crafted from excellent grade ABS material with strict processing technology, this solar charge controller offers a reliable and solution for efficient solar energy management, making it the ideal choice for a variety of applications. Specification: Item Type: Solar Charge Controller Weight: 112g/4oz Product Material: ABS System Voltage: 12V, 24V automatic recognition Current: 10A, 20A, 30A Package List: 1 x Solar Controller 1 x Instruction Manual 1 x Connecting Wire Note: When installing for the first time, ensure that the battery has sufficient voltage so that the controller can recognize the correct battery type. Package List 1 x DIN-Rail Electric Meter 1 x Manual 4 x Accessories