Specification:  Solar Controller:  Size: 4.9x3.9x1.1in（12.5x10x3cm).  USB output: 5V/2.5A.  Standby current: <10mA.  Rated Voltage: 12V/24V.  Rated Current: 20A.  Max.PV Voltage: 50V.  Max.PV Input Power: 260W(12V)520W(24V).  Rated charging current: 10A/20A/30A.  Rated discharge current: 10A/20A/30A.  Working temperature: -35 to +60 degrees.  Ncrease charging voltag: 14.4V (sealed type).  Floating charge voltage: 13.7V (default, adjustable).  Discharge cut-off voltage: 10.7V (default, adjustable).  Discharge recovery voltage: 12.6V (default, adjustable).  Solar Panel:  Material: Class A polysilicon solar panel.  Power: 5W.  Working current: 0-166MA.  Short circuit current: 220MA.  Working voltage: 12V.  Open circuit voltage: 13.5V.  Size: 140*130*18mm.  DC interface: 5.5*2.1mm.  Cable length: 3m approx.     Features:  -Industrial-grade master chip, sampling accuracy, temperature, charging current, Discharge current accurate real-time display, power generation at a glance.  - Automatic focusing ，tracking charging, high charging efficiency, non-stop detection.  During charging, bidirectional focusing tracking.  -Large-screen LCD display, adjustable charging and discharging parameters. When the output is off, the time.Can be adjusted, which is more convenient.  -Acomplete three-phase charge management, effectively protect the battery, the battery is more Durable.  -Built-in overheating, overcurrent short circuit, open circuit protection, reverse connection.Protection,when the fault is eliminated, the controller automatically recovers, does not damage.  The device.  -The Solar Panel is suitable for a variety of low-power appliances: emergency lights, advertising lights, traffic lights, household lights, electric fans, surveillance cameras, solar water pumps, solar street lights, small solar systems, etc.     Packing List:  1 x Solar Panel Battery Regulator Charge Controller.  1 x User Manual.  or 1 x Solar Panel Battery Regulator Charge Controller.  1 x User Manual.  1 x Solar Panel