Most smart switches work in this configuration because the neutral wire maintains an available power source for the switch at all times, even when the lights are off. Power runs to the switch box through a neutral wire, and it is then passed on to the lighting fixture. For these lights, the switch box is where a neutral wire will be connected. Of course, there are standard light switches that will use a neutral wire. Turning the lights off will cut-off the power source that the smart switch needs to do this. Smart switches that require a neutral wire will not work in this configuration because they always need a power source available to communicate with the hub or bridge. This is sometimes referred to as a single pole switch loop. No neutral wire is used when the power source enters a lighting fixture directly, and the switch itself is used to complete the circuit. The first thing you should do is determine if your lights use a neutral wire. It is usually only in homes built before the 1980s where there is not a neutral wire at the light switch. This type of configuration is important for preventing any voltage spikes that may otherwise occur. This allows for a more balanced AC load, and it prevents the switch or lighting device from making a buzzing sound. For these users, their best option is to find a smart light solution that does not require a neutral wire.įor most homes built in the 1980s or later, there is usually both a neutral wire and a hot wire at the light switch. Other users might find that the existing lights they are replacing do not use a neutral wire. For one, some DIY installers might not feel comfortable connecting a neutral wire.
Having to run a neutral wire to smart in-wall switches and dimmers can present problems for certain users. For example, Lutron Caseta devices do not use a neutral wire. These are great for DIY installers looking for an effective smart lighting solution. There are some smart light switches and dimmers that do not require a neutral wire.
#KASA SMART SWITCH INSTALL INSTALL#
Yes, you can install a smart switch without a neutral wire.
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