The solar controller has been specifically designed to meet the needs of the rural electricity market. The low cost results from the use of the latest electronic technology and high-volume manufacturing. This solar regulator automatically adapts to 12V or 24V solar systems and has all the necessary protections for peace of mind. Specifications: Battery voltage: 12V/24V. Maximum solar panel voltage: 36V. Maximum solar panel power: 120W for 12V battery, or 240W for 24V battery. Maximum charging current: 10A. Package includes: 1 x 10A waterproof solar controller. Notes: 1. Please make sure the battery's nominal voltage is 12V or 24V. 2. You need to connect the battery first, then the solar panel and the load. 3. The controller generates heat during operation. Please install it in a ventilated environment. 4. The controller will detect the ambient temperature and then adjust the charging status. Please install the controller and the battery in the same environment. Automatically