Source google image: https://i.pinimg.com/236x/fd/5c/a4/fd5ca4f12035ab31a9a7eef2528936d2–electrical-wiring-light-switches.jpg
Schema electrique multipla
Source google image: https://i.pinimg.com/236x/fd/5c/a4/fd5ca4f12035ab31a9a7eef2528936d2–electrical-wiring-light-switches.jpg