How to Connect a Two-Way Light Switch to a Smart Relay Wi-Fi/ZigBee, With/Without Neutral

Опубликовано 13 ноября 2025, 12:44

In this video, I’ll show in detail how to connect a two-way (pass-through) light switch to a smart Wi-Fi or ZigBee relay — both with a neutral wire (N) and without it.
We’ll go through real wiring diagrams, common mistakes, and several connection options — from simple switches to full two-way control setups.
Simple explanation, real examples, safe wiring — all done by hand.

🔹 What you’ll learn in this video:
– how a two-way switch works and how it differs from a regular one;
– how to connect a smart relay without a neutral wire;
– how to connect a smart relay with a neutral wire;
– how to properly wire phase and neutral;
– how to integrate the setup into Tuya Smart;
– why planning your wiring is so important before buying smart devices.

💡 At the end of the video, I’ll also show common mistakes to avoid and, as a bonus, explain how to make your existing two-way switch wiring smart — without breaking walls or changing cables.
👉 Buy smart relay (no neutral) – s.click.aliexpress.com/e/_c4EN...
or alli.pub/7asjn5
👉 Buy Avatto smart relay (with / without N) – s.click.aliexpress.com/e/_c2Jy...
or alli.pub/7asjo4
👉 Buy ZigBee Gateway – s.click.aliexpress.com/e/_c3a8...
or alli.pub/7asjp3
👉 Voltage tester screwdriver – s.click.aliexpress.com/e/_c4NG...
or alli.pub/7asnhe
👉 Multimeter ANENG – s.click.aliexpress.com/e/_c4nn...
or alli.pub/7asngm

📌 Telegram channel: coupons, new gadgets & deals — t.me/Lubops
💬 Smart home discussion chat: t.me/china_smart_home
🌐 Facebook: facebook.com/EvgenLubops
📣 Follow news and sales on X (Twitter): x.com/LubopsEvgen
✨💼 For cooperation: evgenlubops@gmail.com

🎁 Support the channel:
GitHub Donate – github.com/EvgenLubops/Donate
DONATELLO – donatello.to/Lubops
PayPal – paypal.com/donate/?hosted_butt...
Buy Me A Coffee – buymeacoffee.com/EvgenLubops

⏱ Timestamps:
00:00 – 01:07 Introduction
01:07 – 02:18 What you’ll need
02:18 – 03:25 What is a two-way switch – wiring diagram
03:25 – 04:55 How to connect two-way switches
04:55 – 08:02 Connecting a relay without neutral
08:02 – 09:45 Connecting a relay with neutral
09:45 – 11:14 How to connect a smart relay to existing two-way switches
11:14 – 13:22 Summary

👍 If you found this video useful — like and subscribe for more tutorials and reviews on Tuya, ZigBee, Wi-Fi, and Home Assistant.
🛠 Make your home smarter — step by step with China in a Smart Home – Evgen Lubops.

#SmartHome #ZigBee #WiFi #DIY #SmartRelay #TwoWaySwitch #Tuya #SmartLife #HomeAssistant #Lubops #Tutorial #Review #Testing