Why does a lamp switch click twice when you turn it on and off?

you know, when you turn the knob!

CLICK... CLICK ON.CLICK.CLICK OFF.

what are the extra clicks for?

Answer:

That type of switch is designed for 3-way bulbs. Usually, 50W, 100W and 150W in the same bulb. it%26#39;s made for bulbs that have varying degrees of brightness. Why dont you ******* ask the company that makes them.

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