Comlight uses advanced radar motion detection with radio communication to control light levels and light up the road ahead, providing full lighting when and where needed. This system saves energy and reduces negative environmental impacts from artificial lighting. Comlight is ideal for all use cases where motion sensing light control is needed and works smoothly with pedestrians, cyclists, and vehicles. On less-used roads and walk paths, we often see 80% or more dimming down-time during the night! 




Comlight uses advanced radar motion detection to control streetlighting levels. Our Doppler radar motion detector senses movement from pedestrians, cyclists, and vehicles and brightens streetlights to full illumination for visibility and safety purposes. When there is no movement, the lights dim down to a predefined level. The Comlight system uses radio communication to forward the light-on message to the next streetlights in sequence, lighting the way ahead for users of the road or path. The system differentiates slow- from fast-moving traffic, so the system lights up fewer lights when slow traffic is detected. The streetlight owners can manage their installations using Comlight tools or a third-party CMS (Control Management System).


An example of the potential energy savings from Comlight systems is an installation of 30 luminaires on a district road close to a Community Campus in Norway. The Comlight system monitors vehicle traffic, as well as cycle and pedestrian traffic on a bike and walking path parallel to the road. The first and last luminaires in the installation are set to be always illuminated 100%, so drivers know they are entering an area with streetlighting. Data retrieved from the installation shows the actual dimming time per sensor, which on average amount to 73% of the time during night.

  • Norwegian Road Authorities – FV 325 Vestfold
  • Luminaire: Philips with Xitanium LED driver


The Comlight system is built to be robust without any single point of failure. Adaptive motion detection algorithms greatly reduce the number of false detections that can occur in windy conditions or during heavy precipitation. The communication between the streetlighting poles is not dependent on all the poles in an installation to be present or powered. If a whole segment of lights is out, for example during road maintenance, the remaining end segments will work independently. The system works smoothly and has been tested in the harshest conditions over many years!

Photo by Lan Lanister from StockSnap


How should the installation of a Comlight system work in detail? Who are the stakeholders and what results are they looking for? In the planning phase we consider:

  •  Goals in terms of energy savings, reduced environmental impacts and light pollution, and improving public safety
  • Detection distances, types of traffic, traffic volume, pole heights and position, luminairie and LED driver qualifications
  • Motion detection and light control parameters


 We are happy to help you launch a successful installation

  • Planning
  • Instructions to Installers
  • Commissioning
  • Go-live
  • Testing
  • Documentation
Contact us