﻿At this point, the colour temperature value can be specified that is set when the device is switched on.

*Track*: When switching on, the internally tracked colour temperature most recently specified and in the "Brightness 0%" state is preset. The tracked colour temperature value is not influenced by an ETS programming operation or by a bus voltage failure ("no change"). When the bus/mains voltage returns, the colour temperature active most recently before the bus/mains voltage failure is restored. Hence, this colour temperature is taken into account as a colour temperature value to be tracked when switching on. As long as no colour temperature value could be tracked yet, the default value is "2,700 K", which is optionally limited by the minimum or maximum colour temperature.

*Preset*: The set colour temperature is set when receiving an ON telegram via the communication object "Switching - Setting" or when receiving a central telegram with the polarity "activated".

*Memory value (value before the last switch-off)*: When switching on, the colour temperature is set that was active and stored internally before switching off the last time. This memory value is stored in a non-volatile manner in the gateway so that the value is retained after the bus or mains voltage returns. After an ETS programming operation, the memory colour temperature value is predefined to "2,700 K". This value is optionally limited by the minimum or maximum colour temperature.
