Why is my light switch popping and sparking?

Sparking Light SwitchOne day, you flip a light switch and notice a lovely popping sound. The pop might even be accompanied by a brief blue flash of light from within the switch.

What’s going on here?

Well, it turns out that even if the current rating of the switch has NOT been exceeded, you may have a problem related to inrush current due to the use of fluorescent and especially LED light fixtures…

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