The PWM DC motor speed controller offers a practical solution for controlling motor speeds in various projects. Its adjustable features and durable construction make it an essential tool for achieving precise and efficient motor performance. Features -Color:Green -Material:Metal -Size:5.50X3.50X2.50cm/2.16X1.38X0.98in -Comprehensive voltage adjustment: the pwm controller supports voltage settings from 1.8v to 12v, catering to various dc motor speed needs -Effortless operation: featuring a switch, the 1803bk makes motor speed control simple and convenient -Stable and safe performance: with a 2a capacity, this controller ensures reliable motor operation, protecting against potential damage -Efficiency optimization: precise speed adjustments allow for motor performance, improving overall productivity -Multiple use cases: suitable for a wide range of applications, including mechanical equipment, electronics, and model making, this controller is highly versatile Package list: 20 x PWM DC Motor Speed Controller