What is a triac dimmer?

A triac dimmer is a type of dimmer switch that uses a triac (triode for alternating current) semiconductor device to control the power to a light fixture. Triac dimmers are commonly used in household and commercial lighting systems to adjust the brightness of a bulb or fixture.

Triac dimmers work by interrupting the flow of current to the light fixture at different points in the AC cycle. By varying the point at which the current is interrupted, the dimmer can reduce the power sent to the light, resulting in dimmer light output. Triac dimmers are typically used with incandescent, halogen, and dimmable LED bulbs.

One of the main advantages of triac dimmers is their ability to provide smooth and precise control over the brightness of the light. They can be installed directly in place of standard light switches, making them a convenient and cost-effective option for retrofitting existing lighting systems.

It is important to note that not all bulbs are compatible with triac dimmers, so it is essential to check the compatibility of the dimmer with the type of bulb being used. Additionally, some triac dimmers may produce a buzzing sound when dimming certain types of bulbs.

Overall, triac dimmers are a popular choice for controlling the brightness of lights in a variety of settings, providing users with flexibility and convenience in adjusting their lighting levels.