Circuit Cubes | Tenka Inc.

Potentiometer Cube

Potentiometer Cube - Main image
Potentiometer Cube - View 2
$5.99 $9.99 In stock

Category: Circuit Cube

What’s a Potentiometer, you ask? It’s actually a variable resistor, like the dimmer switch for your lights at home. The resistance is from 0 to 200 Ohms. As you increase the resistance by rotating the dial, you consume more power at the potentiometer. This reduces the power available to the LED or the motor in the circuit. Result: a dimmer LED and slower motor.

The Potentiometer Cube is just one part of a circuit. Add a battery to power your creations, a motor to make them move, an LED to light them up, and a switch to take control!

  • Fits your bricks! Compatible with major brick brands
  • Seamless circuit connectivity (no soldering) 
  • Safety-tested & approved for ages 8+
  • Created by STEM teachers, tested by kids

Customer Reviews (4.6 / 5 · 5 reviews)

Sebastian R. ★★★★★

I wired this into a simple LED circuit and the 0-200 ohm range gives me precise control over brightness, just like a dimmer at home. Really helpful for understanding how variable resistors work.

Sebastian ★★★★★

Turning the knob feels smooth and lets me dial in just the right resistance for testing dimmer-style circuits. The 0-200 Ohm range covers most of what I need for small LED projects.

Emma V. ★★★★★

I turned the knob expecting a noisy jump in resistance but it sweeps smooth all the way from 0 to 200 Ohms. My kids use it to dim the LED strip in their room and it hasn't gotten warm or scratchy after a month of constant twisting.

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