When the Philips Hue Bridge and TaHoma®/TaHoma® switch/TaHoma DIN Rail V2 are connected together, the home automation box communicates with the Philips Hue Bridge.

You can see this very clearly when you teach-in Philips Hue. If you teach-in in the bridge, all your lamps are automatically integrated into TaHoma®/TaHoma® switch/TaHoma DIN Rail V2. The same goes for deleting. If you want to remove single lamps from one of this home automation box, you have to delete them from the Philips Hue Bridge.