Light Switches and Dimmers | Beginners Guide

Modern dimmer designs use microprocessors to convert the digital signal directly into a control signal for the switches. This has many advantages, giving ...

A dimmer switch is a variable resistor that adjusts the voltage supplied to the light, allowing for a range of brightness levels.

A modern dimmer switch chops up the sine wave. It automatically shuts the light bulb circuit off every time the current reverses direction.

Turning the dimmer switch knob pivots the contact arm (or contact plate) on the variable resistor, increasing or decreasing its total resistance. When the knob ...

A light dimmer is a common switch used to adjust the brightness of lighting. This can open many possibilities for decorating and gives a homeowner the power ...

The trailing-edge dimmer is the newer technology where the mains voltage is clipped at the end of the waveform. They are more expensive than the leading-edge ...

Unlike traditional switches, which only offer an “on” or “off” option, dimmer switches enable you to control the electric current flowing to the light bulb, ...

Dimmer switches typically use a semiconductor device called a triac. Mains electricity is constantly varying in a cycle that happens 50 to 60 times every ...

We've had many questions about dimmer switches and asking how they work. In this video we will look at the more common type of dimmer switch ...