Comment by zeta0134

5 days ago

Philips Hue and many other similar smart light bulbs connects to my zigbee network with no Wi-Fi needed. It's remarkably simple to control them from Home Assistant, which I can run on a fully isolated home network. When my Internet gave out for two weeks (the perils of living in a forest) lots of stuff became inconvenient, but my smart light bulbs continued to work perfectly.

The point is not wifi. Wifi is just a protocol, like zigbee, or lora, etc.

Giving something wifi password is different from giving something internet access, they are not inclusive. You just add it to your local network without giving it internet access

In your case, does your smart bulb still have same functionality if you dont add it to your zigbee network ?