These are light controllers that provide various gateway functions between DALI and BACnet or Modbus systems and are multi-functional combining constant light control as well as sunblind control. The 201 comes with a built-in power supply that can be switched on and off allowing it to handle input voltages from 85-240 VAC, 50/60 Hz. The 204 needs an external DALI power supply to power up the DALI network.

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