Famous What Is The Black Screw On Light Switch 2023
Famous What Is The Black Screw On Light Switch 2023 . Why would a light switch have three black wires in addition to the above? See how to turn off your home’s electricity. 4W (30W) LED Edison Screw Light Bulb in Warm White from www.energysavingonline.co.uk Tighten the screw to secure it in place. That is one more than the standard light switch. The black screw is an important one.