A smart line voltage thermostat is a type of thermostat that is designed to control the temperature of a space or device by connecting to a power line. It is a device that is connected to a power line and is able to sense the temperature of the space or device and then adjust the temperature accordingly. It is an intelligent device that is able to make decisions based on the data it receives from the power line. This type of thermostat is becoming increasingly popular due to its ability to save energy and money. It is also easy to install and use, making it a great choice for those who want to save energy and money. Smart line voltage thermostats are also able to be programmed to run at specific times, making them ideal for those who want to control the temperature of their home or office without having to manually adjust the thermostat. Smart line voltage thermostats are a great way to save energy and money while still providing a comfortable environment.