Features: This solar controller is equipped with an intelligent industrial-grade micro controller, and various data are accurately displayed in real time. Adopt 3-stage charge management to effectively protect the battery and make the battery more durable. Dual USB output, the maximum current is up to 2.5A, and supports for iOS mobile phone charging. Automatic focusing MPPT tracking charging, high charging efficiency. Large LCD screen with charging and discharging parameters displayed. With cumulative power generation and discharge power query, light control+delay control, and power-off memory functions. Adjustable charge and discharge parameters, more convenient to use. Built-in short circuit and open circuit protection, reverse current and over-load protection, all necessary protections equipped. Specifications: Rated Current: 60A / 100A / 30A / 40A / 50A (Optional) Material: ABS Rated Voltage: 12V/24V auto adapt USB Output: 5V, 2A Standby Current: <10mA Working Temperature: -35~60 Item Size: 170 * 95 * 40mm / 6.69 * 3.74 * 1.57in Item Weight: 242g / 8.55oz Package Weight: 289g / 10.21oz Package Size: 17 * 10 * 4.6cm / 6.69 * 3.62 * 1.57in Packing List: 1 * Solar Controller 1 * Manual (English)