Super-flat recessed downlight. Die-cast aluminum housing. Light guide and diffuser made of non-yellowing PMMA, prismatic. Clear plastic diffuser, microprismatic. Tunable White dynamically adjustable from 2700 K to 6500 K. With Casambi smart+free Bluetooth® control for wireless networking and operation using an Android / iOS device, free app available for download. Ceiling mounting with spring system. Installation depth depends on ceiling thickness. Including external operating device via plug connection, 250 mm connecting cable. Suitable for through-wiring with separately available accessories. Surface-mounted housing as an accessory for all sizes. Retrofittable decorative cylinders made of chintz fabric as an accessory, optionally with satin plastic cover plate. Through-wiring box (5-pin) available as an accessory.