Series K motion sensor led street light on a mountain road in Norway

This LED street lighting project is on a mountain road in Norway. The project was done in 2018. The client chooses 60W and 120W series K LED street light with the motion sensor function, which is suitable for the mountainous area where there are not many people at night. Energy savings can be as high as 70%. The client is also very satisfied with the European appearance design of this series.

Project details:

ProductModelCCT /OpticsQuantity
120W Motion sensor LED Street Light with CLASS II , DALIZGSM-LD120KM3000K 3M 5050110pcs
60W Motion sensor LED Street Lightwith CLASS II , DALIZGSM-LD60KM3000K 3M 5050110pcs

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More even and efficient distribution of light which is controlled and focused downward reducing light trespass and sky glow reduced energy consumption resulting in energy savings and reduced greenhouse gas emissions; and reduced outages and longer light life spans resulting in reduced maintenance costs.

Municipalities around the world are switching to LED lights to save both money and energy. LED lights have approximately 50 per cent lower energy consumption compared to their HPS luminaire predecessors. HPS lights, most installed in the mid-1980s, are at the end of their useful lives and need replacement. LEDs will provide better service reliability and lower maintenance costs. The new LEDs have a longer lifespan – about four times that of the bulbs we currently use. This translates into ongoing savings in maintenance costs as result of the extended maintenance cycle for bulb replacement. Less maintenance also means fewer service vehicle trips for repairs and as a result, reduced carbon emissions.

Two factors have an impact to sky glow or light pollution, which are up-light and the lumen output (light level) of the fixture.
To address the up light, the majority of the new LEDs are “cobra-head” fixtures and they have received the best ranking – a “zero” – when it comes to the amount of up-light they produce. ZGSM’s fixtures are “Dark Sky” friendly with zero up-light, which means less light pollution and/or sky glow as the light is directed downward.
To address the lumen output, LEDs typically require approximately 47-58 per cent of the lumen output of the HPS light to achieve the same light levels on the pavement. This is due to the efficiency of the light source being able to direct the light where it needs to be versus the HPS light having a lot of wasted light and lack of control. By eliminating the up light and reducing the lumen output of the light source, the LED significantly reduces light pollution.