YF-6 PWM Square Wave Rectangular Wave Signal Generator Driver Module Features: Frequency range: 1HZ~100KHZ adjustable, through potentiometer knob adjustment Duty cycle Range 0~100 percent adjustable.Adjustment through potentiometer knob Power supply: DC 3.3V~20V universal, PWM width = input voltage Output PWM drive capability: output using transistor S8050 driver No decimal point; HZ as a unit; KHZ as a unit when there is a decimal point; automatic conversion; no need for manual adjustment Specification: Product model: YF-6 Frequency range: 1HZ~100KHZ Duty cycle range: 0~100 percent Power supply: DC 3.3v ~20V universal PWM width: = input voltage Weight: Approx.33g/1.2oz   Package list: 1 x PWM Signal Generator Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.