Smart switches that work without a neutral wire need to connect through a bridge or hub because of the programming things like your wireless network details and login are stored in. Get a smart light bulb.
Single Fire Wifi Smart Wall 1 Gang Switch No Neutral Wire Needed
Smart switch without neutral wire. A big caveat however. Supports single wire or 2 wire installation perfect for retrofitting older houses without the neutral wire at the switch point unique e start circuit unlike traditional relays with onoff copper contact minimizes chances of an electrical spark fire retardant housing exceeding australian standards. See more product details new 3 from 6759 free shipping. Most of the available smart switches for no neutral installs only work with incandescent or halogen lamps. For smart switches that function without a neutral wire a home hub is essential. Without neutral wiring older two wire junction boxes arent able to deliver power to a smart switch when the switch is off hence the needup until now anywayfor a wireless hub.
There are dimmable smart switches on the market that can be installed without a neutral wire. For example lutron caseta devices do not use a neutral wire. Although you are limited to only a handful of smart switches that work in a 2 wire circuit and most are dimming devices. Yes you can install a smart switch without a neutral wire. This smart light switch works with most common residential wiring and no neutral wire is required. Easy to use in any home.
The key is the dimming feature which turns the flow of power between the light and the switch down to a slight trickle. A switch box with no neutral loop will usually only have three wires see image below. Two of the wires will be the current carrying wires that power the light. These are great for diy installers looking for an effective smart lighting solution. The circuits neutral wire is in the junction box holding the light fixture. Here are 3 simple suggestions of what you can do to automate lighting without a neutral wire.
You should be good to go with any smart switch. They will usually be colored one black and one white potentially with black stripe. The two wires that come down to the switch from the hot leg powering the light itself. Diy installation takes about 30 minutes for this smart switch for incandescent halogen cfl and led lights. This is by far the easiest option. There are some smart light switches and dimmers that do not require a neutral wire.