DELTA i-system, carbon metallic light signal 250V with glow lamp cover plate 55x 55mm with red window Our extensive DELTA product range offers you a wealth of individual design options thanks to its stylish variety of shapes and colors, which skilfully underline the aesthetics of every room. The DELTA switch inserts are equipped with a combination screw for Torx T10 and slotted screwdrivers. The 3 mm plaster compensation ensures reliable function even in extreme wall conditions. The switches are available as off, changeover and cross switches as well as in various button variants. There are also versions for blind controls, motion detectors, timers or room temperature controls. DELTA switches and sockets - design and quality in perfection from Siemens.