Features:

  • This Brand New 1803BK DC Motor Speed Controller allows controlling the direction of a DC the motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully the product adjust from 0%-100%.
  • With a self-recovery fuse 2A and a Power-On LED light.
  • Enable to provide a continuous current of 2A to your DC motor or other DC load.
  • If the current is too large, it will be automatically disconnected, and the fuse will automatically recover after cooling.
  • PWM DC motor speed controller with switch function.
Fantastic

Needed these speed controllers for the electronics in an art piece I'm working on. These controllers work perfectly and are very well built. The potentiometers don't feel cheap, and are very smooth and gradual in their control. There aren't any weird spots where my motor speeds jumped, and the fact that there is an on/off switch built in is a huge plus. Over all I am impressed with the quality.

Great

These speed controllers work excellent.

using these for n scale train

put two of these in a small project box to control two different track segments on my n scale train layout. slow speed performance is very good. high speed is more than enough and would not run that fast for the scale. speed control is very smooth from the 'click' off to full power. using a 12v dc @ 2a wall wart to provide the power.

Best for DIY Brewing Stirplate

Simply manages all the frustration of designing a DIY Stirplate project. High torque at low rpm and good range of power management.

Works great

Added to the bathroom fan in my camper. Wow what a difference. Can now run it slower and quieter.

5V USB supply worked well for this.

Works well with 5V USB chargers like I wanted it to. Perfect for my application and no problems so far after ~10 hours of use. Pleased

Works great at controlling a fountain water pump.

I'm using this on a 12v fountain water pump. The pump in the fountain works fine but is a little too powerful and I needed a way to turn the speed down and this Speed Controller does the trick. It even has an Off Switch which is really handy when I need to turn the pump off and clean the filter. These are also a great value in 12v motor speed controller.

The six I've purchased work perfectly

No failures after months of use to drive small dc motors with 3mm shafts. The screw down connectors for tiny 26 gauge wire take a while to use with ease. Shaft on potentiometer could be longer. The dc output is a true time modulated clean square wave.

Work very well for controlling motor speed.

Bought these for a project to control two different motor's speeds independently. They did the job perfectly and operate smoothly. Even has an indicator light to let you know it has power when turned on.

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