During normal operation, dimmers do get warm to the touch. A wallbox dimmer's efficiency is typically around 99%. The other 1% is dissipated in the dimmer as heat. So a dimmer on a 600 W load would produce around 6 watts of heat. This is on the order of a small night light.
Why do my Dimmers Sometime Feel Warm?
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Last Updated
11th o March, 2008
