Features: * Auto focus, charging tracking, high charging efficiency, non-stop detection * When charging, two-way focus tracking. * Large-screen LCD display, adjustable loading and unloading parameters. When the output is off, the time can be adjusted, which is more convenient. * Complete three-phase charging management, effective protection of the battery, the battery is more durable. * Built-in overheating, overcurrent short circuit, open circuit protection, reverse connection. Protection, when the fault is cleared, the controller will automatically recover without damage. Specification: Name: Solar Controller Material: ABS Rated voltage: 12v/24v Rated charging current: 30A Rated discharge current: 10A Increase charging voltage: 14.4v (sealed type) Floating charge voltage: 13.7v (standard, adjustable) Discharge cut-off voltage: 10.7v (standard, adjustable) Discharge recovery voltage: 12.6v (standard, adjustable) USB output: 5v/2.5a Standby current: 10ma Working temperature: -35 to 60 degrees Size: 4.9x4.4x1.3in (12.5x11.2x3.4cm) Colour: Black Packing included: 1 * Solar Controller Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.