Upgrade your thermostat installation experience with the ecobee Power Extender Kit. This kit is designed to be compatible with most 24 VAC systems and seamlessly integrates with our range of Smart Thermostat. By using the Power Extender Kit, you can streamline the installation process and save time by avoiding the need to run new wires. The labeled adapter wires and simple setup steps ensure a quick and hassle-free installation, so you can start enjoying the benefits of your new Smart Thermostat in no time. Say goodbye to complicated installations and hello to a more efficient way to upgrade your home's thermostat system.