High Grade: This PWM Motor Speed Controller is made of premium quality ABS material, which has a good durability and wear-resistance to a long term service, you can use it for a long time Easy Installation and Operation: This Motor Speed Controller adopts with screw terminals for convenient and quick wiring, and it also comes with an adjustable momentary start/stop switch and a speed control potentiometer to an easy and convenient control, you can control it easily LED Display Design: This DC Motor Speed Controller designed with a a digital display, which shows percentage rate of actual speed to maximum speed, so the data is readable through the LED display, you can get a precise data easily Wide Input Voltage Range: This PWM DC Motor Speed Controller supports a widely input voltage from DC 6V to DC 60V, and it fits to 12V 24V 36V 48V power supply, at the same time the output current is 0A-30A, which ensures a widely application. You can use this Adjustable Motor Controller in different occasions upon different purposes Stable Performance: This simple and easy-to-use Motor Controller has an stable performance, and it has a momentary start/stop switch and a speed control potentiometer for easy operation, you can regulator it through the potentiometer to provide a better and stable performance Output Voltage: Linear with load Continuous Current: 20A Speed Range: 0% to 100% Regulation : Potentiometer Regulation Type: Regulating Current Control Frequency: 15KHz Wiring Type: Screw terminal colour: as shown Material: ABS Size: 9.6x6.1x3.4cm Package Contents: 1 x PWM DC Motor Speed Controller Only the above package content, other products are not included. Note: Light 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!