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DarkSky Lighting India

Founded in 1988, DarkSky International is an organisation working to preserve and protect the night time environment.As quoted on their official website: 

“DarkSky International restores the nighttime environment and protects communities from the harmful effects of light pollution through outreach, advocacy, and conservation”

Certified LIGMAN products all display the DarkSky Fixture Seal of Approval (FSA) denoting the current standard’s date and DarkSky Approved

Light pollution is the presence of inappropriate, excessive, and typically unwanted artificial lighting. The street light outside your window at night keeping you awake is a perfect example. But light pollution goes beyond needing stronger curtains, it affects human health, plants and animals, as well as our ability to observe the stars in the sky. 

On a small scale light pollution can occur in the form of glare and light trespass. But as the amount of artificial lighting at night increases, a phenomenon known as sky glow occurs. Sky glow is the brightening of the night sky. It occurs mostly in developed urban areas as a result of outdoor lighting, but can also originate from buildings, factories, and advertising. 

If you live in a city with a high level of sky glow, it can be almost impossible to see any stars in the night sky. This amount of artificial lighting at night also impacts the circadian rhythms of both humans and animals denied the darkness of the night. 

Though it is not possible to eliminate artificial lighting completely. DarkSky International wants to restore the night time environment as best they can through their outreach, advocacy and conservation. 
Outdoor Lighting Companies
 

For outdoor lighting companies, the DarkSky Fixture Seal of Approval program provides third-party certification for lighting products. But also for lighting designs and completed installations which minimise glare, reduce light trespass, and minimise light pollution. 

The current criteria for the program has been in operation since 2016 and of all the participating companies worldwide to date, LIGMAN has largest number of DarkSky certified products! Look out for the DarkSky Approved Seal
DarkSky Compliant Outdoor Lighting
 

Although there are countless numbers of outdoor lighting fittings on the market from a variety of outdoor lighting manufacturers. Not all outdoor lighting products are created equally. 

In order for outdoor lighting fixtures to receive DarkSky certification, they must:
  • Eliminate any upward directed light
  • Reduce glare
  • Use dimming and other lighting controls
  • Minimise blue (short-wavelength) light

Eliminating upward directed light is the first step to reducing sky glow. This is one of the reasons the classic spherical post top luminaires have been phased out. Once a popular choice for park and pedestrian area lighting, they were very inefficient with more than half of their light directed at the sky. 

Reducing glare is important for safety and minimising light trespass. Whether through the use of glare shields in pedestrian areas or nearby residential areas, glare can be both a nuisance and in extreme cases dangerous.

It isn’t possible to eliminate artificial lighting completely, as humans we need it to navigate the night time environment. However our cities don’t need to be illuminated 24 hour a day. There are periods of the night, typically from 11:00pm until 5:00am when there is minimal human activity. Since there isn’t any reason to light areas where there are no people present, the use of dimmers, time clocks, mention sensors, and other lighting controls can help reduce the amount of wasted light. Saving energy, increasing the lifespan of the light fittings, and reducing the disruption to the natural environment from unnecessary artificial lighting. 
 
As we come to learn more about the visible light spectrum, the presence of short wave-length (blue) light is now a known problem. Not only to the circadian rhythms of human beings, but also a problem for many animals, plants, and insects. For this reason, in order for outdoor lighting to be dark sky compliant fixtures must be specific with 3000K CCT or Warmer (plus Amber, or warm filtered) LED sources. 

LIGMAN DarkSky Approved Fixtures

Of all the outdoor lighting manufactueres around the world, we are proud to say that LIGMAN has largest number of DarkSky certified products!
If you would like to learn more about DarkSky Approved Ranges of outdoor lighting or street lighting lumainaires from LIGMAN, we have a dedicated page listing the entire range of DarkSky approved luminaires

FAQ

What is DarkSky International?

DarkSky International is an independent organisation working to protect communities and the environment from the harmful effects of light pollution. They achieve this through outreach, advocacy, and conservation. 

What is light pollution?

Light pollution is the presence of inappropriate, excessive, and typically unwanted artificial lighting.

What is light trespass?

Light trespass is where light from one installation spills into an area where it isn’t needed. For example bright commercial lighting impacting a nearby residential area.

What is sky glow?

Sky glow is the brightening of the night sky. It occurs mostly over developed urban areas as a result of outdoor lighting, but also from buildings, factories, and even cars. 

Why is sky glow a problem?

One of the main problems of sky glow is that stars in the night sky are no longer visible. The high levels of artificial lighting that cause sky glow also interfere with the circadian rhythms of both humans and wildlife, as well as plants and insects. 

What is the DarkSky Fixture Seal of Approval?

DarkSky Fixture Seal of Approval is awarded to outdoor lighting fixtures that meet the DarkSky criteria. The criteria has changed over time, but as a minimum it ensures they minimise glare while reducing light trespass and skyglow. 

Is Dark Sky Approval limited to outdoor lighting fixtures?

Although the DarkSky Fixture Seal of approval is mostly applied to outdoor lighting fixtures, a lighting design and finished installation can also receive DarkSky approval as long as it meets the listed criteria. 

What criteria does an outdoor light fixture need to fulfil for DarkSky approval?

In order for outdoor lighting fixtures to receive DarkSky certification, they must: Eliminate any upward directed light; Reduce glare; Use dimming and other lighting controls; Minimise blue (short-wavelength) light.

Does LIGMAN offer a range of DarkSky compliant outdoor lighting fittings?

LIGMAN has an extensive range of DarkSky outdoor lighting products which are listed on a dedicated page of DarkSky approved luminaires

Does LIGMAN also have outdoor street lighting luminaires that meet the DarkSky criteria?

Yes, there are a number of outdoor street lighting luminiares which fulfil the criteria. Please refer to the dedicated page of DarkSky approved luminaires for more information.