You can see the instructions for this connection using this instruction link
The Amazon Echo Dot (4th Generation) and Sengled Smart LED 5000K A19 Light Bulb can communicate with each other using a bridge. This bridge is necessary because there is no shared connection between the two devices.
With the Sengled Smart Hub, The Sengled Smart LED 5000K A19 Light Bulb's Wi-Fi can connect to the bridge, and the bridge can connect to the Zigbee connection of the Sengled Smart LED 5000K A19 Light Bulb. The Sengled Smart Hub also has Amazon Alexa 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 Sengled Smart LED 5000K A19 Light Bulb. This method can use the bridge to connect to the Zigbee connection of the Sengled Smart LED 5000K A19 Light Bulb. The Samsung SmartThings Hub 3rd Generation also has Amazon Alexa compatibility, allowing all of the devices to communicate to each other.
Interface Compatibility
 Amazon Echo Dot (4th Generation) |
 Sengled Smart Hub * Bridge required |
 Sengled Smart LED 5000K A19 Light Bulb |
|
|---|---|---|---|
| Amazon Alexa | Yes | Yes | Yes |
| Apple HomeKit | No | No | No |
| Google Assistant | No | Yes | Yes |
Connection Compatibility
|
Amazon Echo Dot (4th Generation) |
Sengled Smart Hub * Bridge required |
Sengled Smart LED 5000K A19 Light Bulb |
|
|---|---|---|---|
| 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 |