[Signal generator parameters] Wide operating voltage: DC 3.3v-30v; Output current: 8A (maximum); Frequency range: 1Hz-150KH; Duty cycle range: 0.00%-100% (Note: Signal generator positive and negative poles Do not connect it reversely, otherwise it may burn). [Dual Mode] -PP2K PWM DC motor speed regulator has 2 modes: PWM mode: adjust frequency and duty cycle (Note: the number of switches cannot be set in this mode); PULSE mode: set startup delay and start time, The number of switches is adjustable. [Can directly drive loads] Can directly drive loads such as LEDs, motors, and solenoid valves. Pulse number, frequency, duty cycle, adjustable period delay. [Use] It can control the turning on and off of equipment and can be used for switch fatigue testing. Power-off test to verify the reliability of the equipment. Used for PWM signal generators; driving lights/motors/solenoid valves; square wave/rectangular wave signal generators; servo motors/stepper motors/electric jaws Colour:As Shown Material:Plastic Package Contents: 2 * generator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.