Greartisan 1_8V-15V 2A DC Motor Speed Controller PWM Variable Speed Regulator Governor Switch 1803BK With Speed Control Knob

Descprition: Model: 1803BK Knob Potentiometer: Resistance Value B100K; Trepanning 8mm Work Voltage: DC 1.8V-15V Output Voltage: Approx.0%-100% of Input Voltage Max Current: 2A Speed Range: 10%-100% PWM Frequency: 21kHz Module Size: 32*32*14mm Weight: 14g Packages: 1 x DC Motor Speed Controller PLEASE NOTE: 1.DC power supply polarity can not be inversed, otherwise is may damage speeder. 2.If need the forward and reverse function, customer can connect the positive and negative switch. 3.Reserved lead type knob interface, if use lead type knob, it need to dismantle the fixed potentiometer first. Suitable for DC motor speed control etc. 4.Not suitable for AC power supply.