How to: Wire A Light Switch

There are some ways to regulate and automate your lights with SmartThings. In the event you choose to manage your overhead lighting with smart switches or dimmers, you’ll either want to hire an electrician to install the switch, or wire the light yourself.

Wireless Touch Switch White 2 Gang 1 Way Touch Switch For LampTo help guide you through wiring a light switch yourself, we wanted to highlight a fantastic post from the SmartThings Community posted by “sidjohn1.Hope you discover this useful!

“So you want an automated hardwired light switch, but you’re undecided where to start out. Well you’re in the right place. The commonest requirement of any hardwired automated light switch is a neutral wire. Yes, there are a fewread very, very, only a few) switches that don’t require a neutral, but those will limit you to incandescent only. For those of us using LED, Fluorescent or another energy efficient bulbs under 20w a neutral is REQUIRED!

So what does this appear like?

This can be a diagram of a switch with the neutral run directly to the sunshine. This is not good for automated hardwired light switchs and i would HIGHLY recommend that if you wish to automate the light, contact an electrician and have them pull a neutral for you. It’s not as expensive as you think and can prevent a number of frustration.

This can be a diagram of a switch with a neutral. The black “hotconnection is broken to turn the light on/off, the white “neutralconnection completes the circuit. The bare (hopefully) solid copper wire is the ground. It protects from static build up and from electrical insulation failure, in short it’s only job is to make your house safer. If this is what you see once you remove your wall plate you’re a go for hardwired automated light switchs. YAY!

This is a diagram of what you’re automated hardwired light switch should generally appear like if you find yourself done. Yes there can be some slight differences on weather or to not pigtail (a short wire that leads from the switch to the yellow caps) the load and/or line but your ground and neutral should ALWAYS be pigtailed.

Ultimately, if any of this makes you are feeling uncomfortable or the wiring diagrams makes your eyes crossCALL YOUR LOCAL ELECTRICIAN! They are there to help! Bad wiring causes fires and other glitchy weirdness you don’t want in your home. If connecting 4-5 wires excites your happy place, the term “pigtailmakes you giggle and electrical tape is your friend thenLet’s Get Wired Up!


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