GreenBlue DIN rail staircase automatic, adjustment 30s-10m, max 2300 W, GB114, 3 pieces3x staircase automatic rail adjustable 2300W The GreenBlue GB114 staircase automatic is a practical device that allows automatic lighting control in rooms where light is needed only for a specific period of time. It is used primarily in staircases, basements, corridors, garages and other common spaces in residential and commercial buildings. Thanks to it, you do not have to remember to manually turn off the light the automatic will do it itself after