Features 1Scope of Application: Solar panel controller is mainly applied to small off grid solar power system such as home solar power system ships etc 2Self Setting: According to the actual situation set the solar panel controller strong charging voltage and battery low voltage protection voltage 3PWM Charging: Solar charge controller adopts 3 stage PWM charging mode strong charging balanced charging and floating charging 4Intelligent Microcontroller: Solar charge controller adopts intelligent microcontroller design all work processes are controlled by software which can achieve reliability 5ABS and Aluminum Plate: Solar panel charge controller is made of ABS and aluminum plate material which is wearable and durable and has a long service life Specification Item Type: Solar Panel ControllerMaterial: ABS Aluminum PlateProduct Size: Approx. 13 x 10 x 3cm / 5.1 x 3.9 x 1.2inSec10(10a): Maximum 175w Solar PanelSec20(20a): Maximum with 350w Solar PanelBattery Type: Lead Acid Ternary Lithium Lithium Iron PhosphateVoltage: 12V/24V Automatically ApplicableCharging Technology: PWMUse: Solar ControllerWeight: Approx. 224g/7.9oz Package List 1 x SolarPanelController1 x User Manual