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Light control for outdoor lighting

Outdoor lighting makes our streets and outdoor environments safer and more pleasant, but it is also a large energy consumer. If we turn off the light completely, people will feel unsecure. A good way to handle this challenge is to use dimmable LED lighting that will reduce energy consumption without compromising on safety.

Glamox offers a system where the dimming controls are integrated in each luminaire. We call it Glamox NightDim and there are 2 different pre-set modes. 

 

Mode 1 (ND1)

Dimmed down 50% for 6 hours starting from centre point 

The system must be controlled by either a timer or a twilight sensor. The NightDim calculates the light cycle’s centre point and dims the light down to 50 % in a period of 6 hours after the centre point. 

Example 1

October 

  • In October a street is illuminated for 14 hours, from 6 p.m. to 8 a.m.
  • The centre point is at 1 a.m. (14 hours divided by 2 equals 7 hours which places the centre point 7 hours after 6 p.m.). 
  • Light will be turned on 100% at 6 p.m. 
  • At 1 a.m. the lights are dimmed to 50%. 
  • At 7 a.m. the lights are back to 100%. 
  • At 8 a.m., the lights are turned off. 

June 

  • In June the same lights are burning for only 6 hours from 10 p.m. to 4 a.m. 
  • The centre point is at 1 a.m. (6 hours divided by 2 gives a centre point 3 hours after 10 p.m.) 
  • At 10 p.m. the light will be turned on 100%. 
  • A 1 a.m. the light will be dimmed to 50% 
  • At 4:00 a.m. the light will be turned completely off.
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Mode 2 (ND2)

Dimmed down 50% for 8 hours, starting 2 hours before centre point 

The system must be controlled by either a timer or a twilight sensor. The NightDim calculates the light cycle’s centre point and dims the light down to 50% for a period of 8 hours starting 2 hours before the centre point. 

Example 2

 

  • In October a street is illuminated for 14 hours, from 6 p.m. to 8 a.m.  
  • The centre point is at 1 a.m. (14 hours divided by 2 gives a centre point at 7 hours after 6 p.m.). 
  • The light will be turned on 100% at 6 p.m. 
  • 2 hours before centre point (11:00 pm) the light will be dimmed down to 50%. 
  • At 7 a.m. the lights are back to 100 % 
  • At 8 a.m. the lights are turned off. 
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