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Category: Electrical - Topic: Lamp Humming Coming From

Some lamp lights "hum" when they are dimmed. The reason behind this is the lamp filament vibrating as the dimmer rapidly switches the lamp on and off. Lamp hum is generally noisiest at the mid-range (50%) dimming level. When this occurs use rough service lamps sometimes called garage door opener lamps. There are also physically smaller lamps, or lower wattage lamps. This should eliminate the hum noise.

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