Power Extender Kit C-Wire Adapter

Skip the expensive common wire installation with our do-it-yourself ecobee Power Extender Kit. It’s smart, straightforward, and a great way to save money. Plus, get the easy-to-use step-by-step installation guide by scanning the QR code on the box. Not sure if you need a PEK. Use the ecobee Thermostat Compatibility Checker to find out.ecobee Smart Thermostats are designed to work without a C wire in most homes. But some systems may require a C wire for consistent power, with the power extender Kit a cost-effective and efficient solution for homes without a common wire