About us

A team of experts in lighting control, power line communication and tunnel operations

About us


A proven versatile and scalable
solution using power line communication
for energy saving, reduced equipment
and maintenance costs

Our solution


A one stop shop for
all services - from feasibility
study to after sales service

Our services


Over 100 road tunnels, underpasses
and area lighting projects all
around the world

Our projects

We develop power line lighting control systems for road tunnels, underpasses and areas

Power line addressable control and monitoring for tunnels, underpasses and other areas that offers substantial energy savings, reduced operational costs and improved user safety and security.





Streets and highways


Parking lots


Parks, campus etc...



The lighting control and monitoring solutions developed by Nyx Hemera Technologies use the latest advanced power line communication technologies available on the market.

It uses methods that combine time and diversity techniques to achieve ultra-robust power line communication:

  • The modulation technique is a blend Orthogonal Frequency-Division Multiplexing (OFDM) and Multiple frequency-shift keying (MFSK) for an efficient transmission;
  • The use of up to 8 frequency channels optimizes the communication success rate;
  • The system uses an adaptive communication speed from 360bps to 23000bps that will automatically adjust depending on the traffic on the powerline.

Power line communication doesn't require the installation of additional control wires for control and monitoring. It uses the existing powerline cables.  This means important savings on the installation time, on wires and connectors and on maintenance of the lighting system.

Latest news

World Ocean Day 2022, June 8, 2022

Commissioning of the TLACS in another road tunnel in Colorado


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