Features 1 Build in industrial micro controller 2 One key setting LCD display auto memory function 3 Fully 3 stage PWM charge management 4 Build in short circuit protections open circuit protections reverse protections over load protections 5 Dual MOS Reverse current protections low heat productions Parameters 1 Color Black2 Size App 150 78 35mm3 Rated Voltage 12V 24V Auto4 Current 10A 20A 30A5 Standby current 10mA6 USB Output Voltage 5V 3A7 Operating temperature 35 60℃8 Application Camping Hiking9 With Timer and light sensor it could work for solar light system Safety instruction 1 Make sure your battery has enough voltage for the controller to recognize the battery type before first installation 2 The battery cable should be as short as possible to minimize loss 3 The regulator is only suitable for Lead Acid Batteries OPEN AGM GEL It is not suited for Nickel Metal Hydride Lithium Ions or Other Batteries 4 The charge regulator is only suitable for regulating solar modules Never connect another charging source to the charge regulator Connection 1 Connect the battery to the charge regulator plus and minus it will show 1 if it detects 12V battery 2 if it detects 24V battery 2 Connect the photovoltaic module to the regulator plus and minus 3 Connect the consumer to the charge regulator plus and minus The reverse order applies when deinstalling An improper sequence order candamage the controller Note Only For off Grid PV Solar Sys