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General Press Releases

Posted on: November 22, 2023

Dark Sky Lighting Installed On Pasquinelli Drive

Westmont, Illinois – Date Issued: November 22, 2023

Pasquinelli Dark Sky Project

Construction on the Pasquinelli Drive Street Lighting Improvements Project, which included Dark Sky initiative recommendations, is now complete. The project utilizes Dark Sky lighting strategies through fixtures complying with the color temperature and shielding recommended by the International Dark Sky Association (IDA).  

Following are some of the highlights of the project: 

  • Demolition of the existing concrete poles, replaced with 13 aluminum poles
  • Replacement of 3 lighting control cabinets
  • Installation of approximately 10,500 feet of new streetlight cable
  • Installation of 58 total Dark Sky-inspired light fixtures
  • (36) 3000K fixtures on Pasquinelli Drive
  • (22) 2700K fixtures on Oakmont Drive

“We are extremely pleased to see this Dark Sky-inspired project completed,” said Trustee Bruce Barker, who is the chair of the Environmental Improvement Committee Chair. “This lighting update moves us in the direction of embracing a Dark Sky philosophy, which benefits the entire community.”


Dark Sky initiatives are based on the understanding that all life on Earth has evolved over billions of years relying on a circadian rhythm, a daily cycle of light and dark to govern life-sustaining behaviors such as reproduction, nourishment, sleep and protection from predators. Scientific evidence suggests that artificial light at night can have a negative effect on the world’s ecosystems.  However, there are a variety of additional reasons to embrace a Dark Sky initiative.

One of the easiest to understand benefits of a Dark Sky initiative is aesthetics.  Simply put, light pollution prevents people from seeing the natural beauty of our nighttime skies.  Dark Sky embraces that idea that people have a right to enjoy the stars in the nighttime sky.

Outdoor lighting is intended to enhance safety and security at night, but too much lighting may actually have the opposite effect. Visibility should always be the goal. Glare from bright, unshielded lights may reduce overall visibility and restrict our ability to see an entire area clearly.

It is estimated that 30% of all nighttime lighting is wasted in the form of having lights that are too bright or overlighting areas unnecessarily by not having proper shielding.  This results in citizens wasting billions of dollars while creating millions of tons of unnecessary carbon dioxide to power this extra light output.


There are  three main factors that citizens can address to improve night time lighting aesthetics, environmental impact, safety, and costs - BRIGHTNESS, SHIELDING & COLOR TEMPERATURE.

Because LED lights use less energy than incandescent and fluorescent lights, lighting selections are often made that produce a brightness well beyond what is needed. Bright lights do not necessarily translate into improved safety and may cause glare, making it difficult to see the area intended to be lit.  It is recommended that bulbs be selected with a wattage not more than 60W. 40W is preferred (LED equivalent wattage of 5W – 9W).  

Dark Sky-compliant fixtures include shielding that focuses light in a downward direction and prevents light from being emitted in an upward direction, or out toward neighboring properties.  Shielding also allows for the opportunity to light only intended areas rather than spreading light beyond the intended area.

Many LED lights shine at a color temperature that negatively affects humans, animals, and pollinators. Blue light (often marked as daylight or cool white) affects our circadian rhythm and can be damaging to the human eye.  It is recommended that lights that produce a color temperature of 3000K or less (typically marked as soft-white or warm-white) are ideal for producing the desired effect of providing light while not over-illuminating a specific area.

Additionally, technologies such as motion sensors, dimmers, and timers allow for outdoor lights to only be used when needed, saving money, benefiting our environment, and preserving citizens’ view of the night sky.


The International Dark Sky Association (IDA) is committed to the idea that a night sky, filled with stars, should be celebrated and protected. IDA strives to accomplish this by providing leadership, tools, and resources for individuals, policymakers, and industry. IDA strives to reduce light pollution and promote responsible outdoor lighting that is beautiful, healthy, and functional. For more information, visit the IDA website at 


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