Packing List:1 x Solar Panel Battery Regulator Charge Controller1 X User ManualSpecification:-Size:4.9x3.9x1.1in12.5x10x3cm-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 voltage: 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)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 detectionDuring 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 damageThe device.Note:1. Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid.2. The colors may have different as the difference display, please understand.