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Company: Comlight AS

Project title: District Road 51 Tengs - Bjerkreim

Location: Egersund, Norway

Category: Zhaga-D4i – WINNER

This category was sponsored by the Zhaga Consortium.

Overview and Judges' comments:

"This project is a 13km district road in Norway, with 275 luminaires from Signify. The luminaires are equipped with light controllers from Comlight with integrated doppler-radar motion detectors. These pass messages to the next luminaires to light up the road ahead, providing full light for vehicles, cyclists, and pedestrians.

The judges felt this was an excellent example of Zhaga-D4i in practice, with some great benefits including fast installation of the controller; only 1.5 to 2 minutes is required per luminaire, instead of 15 minutes for the pole-mount version.

Significant energy saving is achieved, typically 70% at night even on this district road, and the system also provides statistical and energy data, which is made available to the cloud-based backend system."


Comlight_District Road 51 Tengs to Bjerkreim_3
Comlight_District Road 51 Tengs to Bjerkreim_2
Comlight_District Road 51 Tengs to Bjerkreim_1

What did the project set out to achieve?

The project uses Motion-Based Light Control on a 13 km (8 miles) stretch of district road in Norway. All 275 luminaries were equipped with Comlight Eagle Eye Zhaga light controllers with integrated doppler radar motion detectors. The controllers use radio communication to pass light-on messages to the next luminaries, providing full light for vehicles, cyclists and pedestrians.

How is DALI used within the project?

275 Signify Luma luminaries were equipped with Comlight Eagle Eye Zhaga motion detection light controllers. The light controllers detect movement on the road and control the LED dimming level, as well as communicating with neigbours to light up the luminaries ahead.

Why was DALI chosen?

The scheme uses doppler motion detection radar, with DALI controlling devices to control the LED drivers. Sub-GHz radio communication between controllers. User-defined parameters to control number of lights ahead, light levels % fast/slow traffic and low level, tune sensitivity. Gateway access to commission the installation, adjust parameters as well as retrieve statistics. Integration with cloud backend system with web tools and API for CMS integration. Emergency lighting, High-traffic mode, Service mode. Robust architecture with no single point of failure. Well tested and proven detection technology in all weather conditions.

What benefits does DALI provide?

The Zhaga-D4i connectors enable very easy installation, around 1.5 to 2 minutes per luminare! (See video, below). In comparison, the Eagle Eye pole-mount model takes about 15 minutes to install.

High energy saving numbers, typically 70% dimmed down time during night even on a district road.

Very attractive concept that provides future-proof concepts and less risk for the customers. Today, most luminaries in Scandinavia, Switzerland are equipped with Zhaga sockets, many on both top and bottom sides.

Access to statistical data and saving numbers.

More info

► Comlight website

► Two videos showing streetlights illuminating as cars approach, then dimming afterwards: Link 1 and Link 2

► Video showing installation of Comlight nodes: Link 3