Factory Pwm Solar Charge Controller 12V 24V 50A Lcd Display Solar Charge Controller With Dual Usb Port1

power solar charging controller 12V 24V 50A , housing appearance of  orange design,blue cover , using a big screen digital display with blue back light and double USB charging port. This power solar charging controller 12V 24V 50A is suitable for all types of solar panels, various types of batteries, MCU (micro-controller) with a PWM (Pulse Width Modulation) 0 ~ 100% variable duty cycle process. To provide fast, optimum charging voltage and current according to the actual charging situation and the type of battery. Real-time display (LED lights) battery capacity. power solar charging controller 12V 24V 50A is Safe, reliable and efficient.

A PWM (Pulse Width Modulation) controller is a device that regulates the power output to a load by adjusting the width of the pulses in a square wave signal. The number "40" in the context of a PWM controller could refer to a specific model or specification, but without further information, it is difficult to provide a more specific answer.