Feature:1. High Speed Master Control Chip: The solar controller uses a 32 bit high speed master control chip with a large LCD display and adjusting charging and discharging parameters. Supports TTL communication using standard protocols.2. Temperature Compensation: Complete multistage PWM charging management, can be set to on off charging, better support voltage sensitive loads. Automatic adjustment of charging parameters with temperature compensation.3. Support Battery: Our controller supports custom, sealed acid (factory default), colloidal acid, open acid, lithium battery (default lithium iron phosphate), five types of batteries in total.4. Multiple Protection: Extensive load working modes are convenient to use for various DC loads. Built in reverse connection protection, open circuit protection, high temperature protection, over current, short circuit protection (can be set), all self recovery type, no damage to the controller.5. Double MOS Anti Backflow Circuit: Low heat generation, with lithium battery activation function. Humanized design browsing and dynamic interface, convenient and intuitive for all operations.6. Applicable Scenes: This controller is suitable for solar power generation system, solar street light, solar charger solar light box, RV, etc.Specification:Item Type: Solar ControllerMaterial: PCVoltage: 12V 24VCurrent: 40AWorking Temperature: -35 to 60Altitude: 3000mProtection Grade: IP32.Package List:1 x Solar Controller1 x Connection Cable3 x Black Terminal3 x Red Terminal1 x Instruction Manual