Outdoor lighting helps people navigate pathways, driveways and public spaces safely after dark. However, poorly designed lighting can send unnecessary light into the sky, create glare and disturb the surrounding environment.
DarkSky Approved lighting offers a more considered approach. It delivers useful illumination where it is needed while reducing light pollution and protecting the natural darkness of the night sky.
However, what does darksky actually mean? Why should it matter when choosing outdoor lighting?
DarkSky Approved is an independent certification awarded by DarkSky International, a globally recognised organisation dedicated to protecting the night-time environment.
The darksky certification identifies outdoor lighting products that meet strict requirements. These rules aim to minimise glare, reduce light trespass and limit light pollution.
Instead of letting light escape upwards or spread across the area, an approved fitting controls its light output. This method keeps illumination focused and efficient. The approach helps protect neighbours and wildlife. It supports responsible design and safe night-time use.
Therefore, DarkSky Approved does not simply mean that a product uses an energy-efficient LED. The complete luminaire must demonstrate that it directs and manages light responsibly.
Light pollution describes the excessive, misdirected or unnecessary use of artificial light at night.
It can take several forms:
Although one poorly positioned light may appear insignificant, the combined effect of thousands of fittings can dramatically alter the night-time environment.
DarkSky International independently assesses luminaires against its technical requirements. Approved products must demonstrate careful control of light and support the principles of responsible outdoor lighting.
DarkSky Approved lighting should:
A well-designed outdoor light directs illumination towards the ground or intended surface. It should restrict upward light that could contribute to skyglow.
This approach works particularly well for pathways, driveways, landscaped areas, entrances and pedestrian routes, where the goal is to illuminate the route rather than the entire surrounding space.
More brightness does not always provide better visibility. In fact, an excessively bright or exposed light source can create glare, making surrounding areas appear darker and more difficult to see.
DarkSky Approved luminaires use considered optics, shielding and positioning to provide useful illumination while improving visual comfort.
Responsible outdoor lighting uses the lowest suitable light level for the application. It does not attempt to turn night into day.
By selecting an appropriate output and carefully planning the spacing between fittings, designers can create a comfortable and functional lighting scheme without flooding the area with light.
Cool white light contains a greater proportion of short-wavelength blue light, which scatters more readily through the atmosphere and can increase skyglow.
Warmer colour temperatures create a softer atmosphere and generally have a lower impact on the night-time environment. This makes warm outdoor lighting particularly suitable for gardens, holiday parks, glamping sites, rural developments and environmentally sensitive locations.
Timers, photocells, dimming systems and motion sensors can reduce the length of time that outdoor lighting remains at full output.
Lighting controls allow a scheme to provide illumination when it is genuinely needed and reduce or switch off the light when an area is not in use.
DarkSky International and the Illuminating Engineering Society developed five principles to help specifiers, designers and property owners make better outdoor lighting decisions.
Responsible outdoor lighting should be:
Together, these principles provide a straightforward framework for creating practical lighting schemes that respect their surroundings.
Choosing responsible outdoor lighting can provide several benefits.
Many species rely on natural patterns of light and darkness for feeding, migration, reproduction and rest. Excessive artificial light can interrupt these behaviours, particularly around woodland, waterways, coastal areas and other sensitive habitats.
Targeted, low-level lighting helps reduce unnecessary disruption.
Uncontrolled upward light contributes to skyglow, which can hide stars from view even many miles away from its original source.
Restricting upward light helps protect the night sky for residents, visitors, astronomers and future generations.
A carefully shielded fitting can make an outdoor space easier to navigate because it reduces harsh glare and strong contrasts between bright and dark areas.
Good lighting is not necessarily brighter lighting. It is lighting that places the correct amount of illumination in the correct location.
Light that shines into the sky, through windows or beyond the intended area uses electricity without serving a useful purpose.
Efficient fittings, appropriate output levels and suitable controls can reduce wasted energy and help lower running costs.
DarkSky Approved products can help architects, landscape designers and developers demonstrate a more responsible approach to exterior lighting.
This can be especially valuable for holiday parks, glamping sites, rural housing developments, heritage settings, nature reserves and projects close to protected habitats.
Not necessarily.
“Dark-sky friendly” can describe a product or lighting approach, but the term does not always indicate that the luminaire has undergone independent assessment.
DarkSky Approved status provides greater confidence because DarkSky International has reviewed the product against defined requirements. When comparing outdoor luminaires, look for official certification rather than relying solely on general environmental claims.
It is also important to remember that certification applies to specific luminaires or configurations—not automatically to every product made by a manufacturer.
At Iconium, we believe outdoor lighting should complement the landscape rather than overpower it.
Our Stratton Indirect Double has achieved DarkSky Approved status, demonstrating its ability to provide useful, carefully controlled illumination while reducing unnecessary light spill and upward light.
Its indirect design conceals the light source and directs illumination downwards, helping to minimise glare and create a comfortable pool of light around the bollard. The natural timber construction also allows the fitting to sit sympathetically within gardens, pathways, holiday parks, glamping resorts and rural developments.
By combining responsible lighting design with locally sourced timber and high-performance LED technology, we provide an alternative to conventional metal outdoor lighting.
DarkSky Approved lighting does not require outdoor spaces to remain unlit. Instead, it encourages us to use artificial light more thoughtfully.
The aim is simple: provide the right light, in the right place, at the right time—and no more.
Whether you are planning a residential pathway, hospitality development, public landscape or environmentally sensitive project, choosing independently approved lighting can help create a safer, more comfortable and more responsible night-time environment.
To learn more about Iconium’s DarkSky Approved timber lighting or discuss an upcoming project, contact our team on 0117 325 5055 or email lights@iconium.uk.com.
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