You can see the instructions for this connection using this instruction link
The Google Nest Hub and IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum can communicate with each other using a bridge. This bridge is necessary because there is no shared connection between the two devices.
With the IKEA TRÅDFRI, The IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum's Wi-Fi can connect to the bridge, and the bridge can connect to the Zigbee connection of the IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum. The IKEA TRÅDFRI also has Google Assistant compatibility, ensuring the connection can be made.
Another compatiblity is to use the connections between the third party Samsung SmartThings Hub 3rd Generation with the IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum. This method can use the bridge to connect to the Zigbee connection of the IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum. The Samsung SmartThings Hub 3rd Generation also has Google Assistant compatibility, allowing all of the devices to communicate to each other.
Interface Compatibility
 Google Nest Hub |
 IKEA TRÅDFRI * Bridge required |
 IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum |
|
|---|---|---|---|
| Amazon Alexa | No | Yes | Yes |
| Apple HomeKit | No | Yes | No |
| Google Assistant | Yes | Yes | Yes |
Connection Compatibility
|
Google Nest Hub |
IKEA TRÅDFRI * Bridge required |
IKEA TRÅDFRI LED bulb E12 400 lumen, white spectrum |
|
|---|---|---|---|
| Amazon Sidewalk | No | No | No |
| Bluetooth | Yes | No | No |
| Clear Connect | No | No | No |
| Thread | No | No | No |
| Wi-Fi | Yes | Yes | No |
| Z-Wave | No | No | No |
| Zigbee | No | Yes | Yes |