How to Identify a Neutral Wire September 28, 2021 21:19 Updated Follow Related articles DG6HD: 600 Watt Zigbee Dimmer After installing device and applying power, it doesn't function and the LED doesn't turn on Do I need a Neutral Wire for In-Wall Zigbee Devices? Choosing the right LED Bulb and Dimmer Combination Video - How to Identify a Neutral Wire