1、Scope of Application: Solar panel controller is mainly applied to small off grid solar power system, such as home solar power system, ships, etc 2、Self Setting: According to the actual situation, set the solar panel controller strong charging voltage and battery low voltage protection voltage 3、PWM Charging: Solar charge controller adopts 3 stage PWM charging mode, strong charging, balanced charging and floating charging 4、Intelligent Microcontroller: Solar charge controller adopts intelligent microcontroller design, all work processes are controlled by software, which can achieve reliability 5、ABS 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 1 x Solar Panel Controller1 x User Manual 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