BHW 3 Way Switch Animation. A 3-way switch is analyzed and described as to how it works. This is a short clip from the instructional program, The Basics of Household Wiring. http://www.electrical-online.com/store/the-basics-of-household-wiring-dvd/. Enroll in my full course, Learn The Basics of household Wiring at https://www.udemy.com/learn-the-basics-of-household-wiring/