Best answer: Smart light switches without a neutral wire are rare, but there are several brands catering to your needs. Lutron Caseta is a personal favorite, though it requires a second bridge or hub to get them "active" on your smart home network. A C by GE switch works without a neutral wire or hub, making it the most affordable option. Smart switches never sleep Many homes were wired before the National Electric Code required every light switch junction box have a neutral wire. If you own such a home, many of the best smart switches won't work for you. Every smart switch needs a neutral wire attached because they need to stay powered all the time. Without a neutral wire, there is a single circuit between the bulb, power source (or junction box), and light switch. If you switch off the lights, the electric current is broken because no power is passing through the bulb. That's why you typically need a neutral wire, which directly connects the power source to