LED street lighting dimming feature helps to flexibly adapt street and outdoor lighting to the varied nightlife of cities and municipalities and enables big energy savings.
It offers three different control and dimming functions in
one electronic control gear:
  • DALI – digital interface for bi-directional communication
  • CDIM – dimming with the help of a control line
  • ADIM – autonomous two-level dimming


CDIM – midnight step-down switch is used in installations where a control line (switched phase) is available in addition to the power line. The switched phase is connected to the terminal board of street lighting fixture and an external actuator is used to start and end dimming. The dimming parameters (e.g. dim levels and fade times) are factory pre-set.


Installation with external control line for CDIM operation. CDIM operation – light output over time: one dim level.


ADIM – autonomous dimming is designed for dimming without any external control wiring and helps to save energy and reduce light pollution, even if only a power line is available. In ADIM operation, the street lighting fixtures executes a pre-set dimming profile, which can be factory programed. The autonomous dimming is regulated by an integrated timer, which adjusts the dimming profile according to the previous night (operation from switch-on to switch-off).


Installation without external control line

(ADIM operation)

ADIM operation- light output over time: with one or

two dim levels


Today outdoor lighting plays an important role in the safety and security of our streets, parks and public places, and has to be smarter to comply with new legislation, environmental challenges and requirements to reduce energy usage. NORTHCLIFFE LIGHTING latest solutions offer wide product range and options to meet your precise lighting requirements, while delivering reduced glare and improved light control.


Algol TS LED Algol TM LED Algol TB LED
Draco LED Sargas LED Algol ALU LED


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