The Gira L1 Logic Module (2070 00) is a KNX logic controller intended to process automation conditions and coordinate actions within a building-control installation. It can be used to implement project logic that goes beyond direct switching, subject to the functions provided by its configuration software and application. Gira’s technical documentation lists typical KNX bus current consumption of 10 mA and an external supply requirement of 24–30 V DC, with power consumption of 2 W at 24 V. Its stated installation width is 36 mm, or two horizontal pitches; other dimensions should be confirmed from the datasheet. Check programming tools, communication requirements and the current manufacturer instructions before design and commissioning.