The CEIR team’s continuous technical research work has resulted in what is currently the most innovative concealed installation system for suspended ceilings: the Delta system. Ideal for creating ceiling islands and for integrating lighting and signage, this mounting system offers the winning combination of a floating installation and a swing-down panel system. Available in 1200×600 mm, 600×600 mm or customised sizes, the panels can be demountable from either the long or short side, allowing the space required for maintenance operations to be reduced to a minimum. Thanks to these features, the Delta system is also suitable for vertical installation.