This motor speed controller is ideal for those looking to enhance the performance of their motor-driven devices. The adjustable speed knob allows for fine-tuning, ensuring optimal operation and efficiency in various applications. Features -Color:Green -Material:Metal -Size:5.50X3.50X2.50cm/2.16X1.38X0.98in -Flexible voltage settings: the pwm controller supports voltage adjustments from 1.8v to 12v, meeting diverse dc motor speed control needs -Simple operation: the 1803bk features a switch for easy and convenient motor speed control -Motor safety: with a 2a capacity, this controller ensures stable motor operation, protecting the motor from potential harm -Efficiency enhancement: precise speed adjustments enable optimal motor performance, boosting productivity and efficiency -Versatile use: suitable for various applications, including , electronics, and model making, this controller is highly adaptable Package list: 5 x PWM DC Motor Speed Controller