Video - How to Install a Decora Smart® 3-Way Switch/Dimmer using a Matching Companion (DD0SR-DLZ / DD00R-DLZ) September 28, 2021 21:25 Updated Follow Related articles Video - How to Identify a Neutral Wire I have two switches that control one light. When installing Decora Smart® Z-Wave switch, do I need to replace both switches? DD00R: Decora Digital™/Decora Smart® Matching Dimmer Companion DD00R: Decora Digital™/Decora Smart® Matching Dimmer Companion Do I need a Neutral Wire for In-Wall Z-Wave Devices?