Only mount in conjunction with commercially available flush-mounted device boxes in accordance with DIN 49073, Part 1, or Busch-Jaeger item no. 3040 flush-mounted box for masonry, 3050 flush-mounted box for hollow walls or 3060 flush-mounted box for concrete. Can be illuminated by inserting the lamp 8350, 8352, 8353, 8337-1, 8345-1 and 8344-1 and LED inserts. Version: On and off switching Design: flush-mounted
