Features 1LCD Display: Equipped with a large LCD screen to display all parameters, providing a complete overview of your solar system. Works within a wide temperature range for uninterrupted operation. 2Lithium Battery Activation: This MPPT controller features a self activation function for lithium batteries, allowing the solar panel to directly activate the controller even with 0V or low voltage at the battery end. 3PV Power Limitation: When the PV input exceeds the rated power or when the ambient temperature is high, the controller will charge within the rated current, ensuring stable operation of the product. 4Comprehensive Electronic Protection: Offers protection against battery overcharge discharge, reverse connection, short circuit, overload, reverse flow, TVS protection, and more for full safety. 5Customizable Settings: Adjust the battery type, lock the system voltage, customize parameters for each charging stage, and adjust the discharge mode. Additional features include constant output, light control, and light control with timer. With RS485 interface, allow BT browse and edit. EMS design as well as thickened aluminium shell provide heat dissipation and IP34 protection. Specification Item Type: Solar charge controllerMaterial: Aluminium(shell)Weight: Approx. 2427g / 85.6ozProduct Size: 19x18x7cm / 7.5x7.1x2.8in Empty Load Loss: