In this case, electrical energy flows in the ceiling box from the first switch to the next switch. The circuit is disrupted at the 2nd switch, And so the light is turned off. US terminology is applied Within this definition. Enable’s start with the basic notion of ​​a light switch https://fernandoxkaec.blogrelation.com/17120352/how-much-you-need-to-expect-you-ll-pay-for-a-good-wiring-diagram-software