To be able to switch several light bulbs on and off simultaneously with one click, you have the option of grouping them. The only requirement is that they have to be the same light bulbs. This means that it must be the same brand and model.

Follow the steps below to group your lamps:

1. Select the light bulb you want to group.
2. Tap "Group Bulb" at the bottom.
3. Select the lamps you want to assign to the group. (Only compatible lamps are automatically displayed)
4. Then press "Done" in the upper right corner.

You have successfully grouped your lamps. The tiles of the grouped lamps are marked with "Group".