This part of IEC 62386 is applicable to control devices to be used in, on or attached to a luminaire. This standard builds on the Digital Addressable Lighting Interface as specified in the IEC 62386 series of standards, by adding specific requirements for power consumption, integrated bus and AUX power supplies, a mechanism to arbitrate between multiple application controllers, and a memory bank definition for multi-master devices. This document is only applicable to control devices complying with IEC 62386-103.