Solopen Power Extender Kit C-Wire Adapter for ecobee — Open-Box, 16% Off

If your home doesn’t have a pre-installed C-wire, Solopen C Wire Adapter delivers the full power functionality of a common wire, with zero need to run new wiring through your walls. It reuses your thermostat’s existing R, W, Y, and G wires, eliminating the hassle of wall demolition, complex rewiring, and costly electrician visits — making it the most cost-effective solution to your C-wire power needs.

Solopen adapter provides consistent, 24/7 stable 24VAC power supply to keep your Smart Thermostat operating at full performance. It enables you to monitor and control your home’s HVAC system anytime, anywhere, for reliable, hassle-free home comfort all year round.

COLOR-CODED WIRING: Features clearly labeled, color-coded leads (R, G, Y, W) for easy and accurate wire identification during installation

SIMPLE 3-STEP INSTALLATION: Remove existing wires, insert them into the extender kit by matching labels, then connect the kit's wires to the thermostat and mount onto the plate

Unlike the costly, time-consuming process of tearing open walls to run a new C-wire, this C Wire Adapter is designed for ultra-simple, DIY-friendly installation. Just follow the included step-by-step instructions to make secure, correct wiring connections, and you’ll have it fully set up and ready to use in minutes.

The Solopen Power Extender Kit is the perfect solution for homeowners looking to install an smart thermostat without a dedicated C-wire (only replacement for ecobee power extender kit C-wire). Compatible exclusively with 24 VAC systems, this adapter works seamlessly with a wide range of lot models for ecobee, including the Premium, Enhanced, Essential, Lite, such as for ecobee3 Lite, Smart Thermostat with voice control, and also for ecobee 4. The kit features color-coded wire leads labeled R, G, Y, and W for easy identification and a hassle-free installation process. Setting it up is straightforward: simply photograph your existing wiring for reference, remove the four wires from their screws and attach the matching labels, insert the power extender kit according to the labels, then connect the extender kit wires to your thermostat and flip it onto the mounting plate. The compact, clean white design fits neatly inside your HVAC system's control board area. Whether you're upgrading to a smart thermostat for the first time or replacing an older unit, the Solopen Power Extender Kit makes the transition smooth and simple.