Does dimming the lights save energy? 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.

How much electricity do dimmers save?

What we see is a constant light output. 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!

Is it bad to leave lights dimmed?

Electric lights (especially CFLs) have a low resistance which means that the floodgates are opened when lights are exposed to the electrical fluctuations that are sent by a dimmer switch, and it can consume more than 5x of the current when it is connected to a dimmer switch which results in overheating of the bulb and ...