Item Type: PWM Control Module_x000D_Product Model: YYAC-3S_x000D_Single Chip Microcomputer Voltage: 3.3V~5V available;_x000D_Single Chip Microcomputer Frequency: 1HZ~500HZ; _x000D_Single Chip Microcomputer Duty Ratio: 0~100%_x000D_PWM: PWM inputs 0V low level directly, the output is 0V; PWM inputs 5V directly, the output is 220V. _x000D_Load Voltage: 220VAC_x000D_Output Power: Can control within 220V 3A, that is, load within 660W (the output needs to carry a certain load to adjust the voltage normally). 1Safe Working: Adopts original thyristor and ensures completed isolated input and output optocouplers, can work safely under weak current. 2For Control: PWM output through the IO port on single chip microcomputer can adjust the duty ratio and change the 220V AC voltage to achieve the purpose of dimming, speed and power adjustment, etc. 3Output Power: Controllable load within the range of 220V 3A or 660W, and the output under certain load can achieve normal voltage regulation. 4PWM Input: When PWM directly inputs 0V low level, the output is 0V, and when PWM directly inputs 5V, the output is 220V. 5Application: Connect this control module to lamps or household appliances for dimming, speed, voltage and temperature control.1 x PWM Control Module