Day/Night switches

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50 years of day/night switches

Servodan is a pioneer in the production of day/night switches, and since the 1950s has helped shape developments. Over the years, as requirements have become tighter, Servodan has supplied the market with day/night switches adapted to suit technical developments and applications.



  •  Driveways
  •  Back yards
  •  Houses
  •  Holiday homes
  •  Street lighting
  •  Parks
  •  Tunnels
  •  Multi-storey car parks
  •  Car parks



  •  Energysaving
  •  Safe and secure
  •  Effective burglary deterrent


What is a day/night switch?


A day/night switches outdoor lighting on and off automatically. It consists of a light-sensitive element that registers the brilliance of the ambient light. A switch is activated when the daylight reaches the pre-set level.


Brief changes in light caused by clouds, car lights, lightning etc. will not activate the switch, since there is a built-in time delay.


Today day/night switches is available in many varieties, so it is always important to choose the right system, to suit your needs and control requirements.


Choice of solutions

Before choosing a day/night switch it is important to know:


  •  The installation site (surroundings)
  •  Load (light type/number)
  •  Tolerance requirements (energysaving)
  •  Adjustment requirements


Day/night switches have the advantage over time switches in that they react to the light level, not the time. This means that day/night switches always switch on the lighting when it is needed, and at the same lux level, regardless of whether it is winter or summer.




Regarding coverage, the new standard for presence detectors in the 700- and 750-series is based on the well-known detector 41-300, which undoubtedly is the most sold detector in Denmark over time. 


With the 700- and 750-detectors you will get long life detectors in a modern design for both flush and surface mounting. The master/slave versions in a number of variants that you can use in almost any room and applications.

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