Do Dimmers Save Power?

Light dimmers save energy by reducing the flow of electricity to the bulb and allowing lights to operate with lower power outputs. Since lights under less stress shine longer, dimmers are known to extend the life span of your bulbs, too.

Do dimmers waste electricity?

The dimmer itself does not waste much electricity, as the others explained, but you should know that the apparent brightness of the light dissipated by the light bulb is not proportional to the current that is flowing through the filament.

How much electricity do dimmers save?

And dimmers do save. Dimming your lights an average of 50 percent can cut your electric use a whopping 40 percent over time and make your bulbs last 20 times longer!