LEC - News - Information - Resources

This section will help keep you updated on what is happening in the LEC world. Below you will find a wide variety of types of information related to Light-Efficient Communities, including links to news items, local-interest articles, etc.




Photo:  Out with the old...

A workman is in the process of removing the old cobra head luminaire. Replacing it with a 43 watt LED luminaire will save approximately 70% of the power currently used by this HPS luminaire and the ballast (150 watts). This savings amounts to approximately 468,000 watts per year per luminaire!



Download Excellent Dark Sky Maps

Click on the links provided to access and download APPS showing light pollution throughout the world.

These apps will provide maps that show light pollution gradients in your local area or an area of interest. This information will help you locate areas of great and little light pollution, important for finding better areas for astronomical observations and for locating areas where light pollution should be addressed through municipal policies and luminaire changes. They may also be used to ensure light levels have not increased, etc.

Right: Alberta, one of the most light polluted areas of the world. From the top: Edmonton, Red Deer, Calgary. Note the wide distribution of light pollution from cities.

From Google Play (Android):

Light Pollution Map - Dark Sky & Astronomy Tools

An Excellent Tool for finding dark skies with your Android phone!


From Google.com:  Dark Sky Finder (do a search on this page…)


Credit: P. Cinzano, F. Falchi (University of Padova), C. D. Elvidge (NOAA National Geophysical Data Center, Boulder). Copyright Royal Astronomical Society. Reproduced from the Monthly Notices of the RAS by permission of Blackwell Science.

The following companies have been listed as they are carrying lighting products which are designed to meet LEC-Compliant approval. LEC-Compliant luminaires are designed to meet the LEC Prime Principle. Luminaires carrying IDA-Approval may not meet LEC-Compliant specifications which are much more stringent. From now on, this site will only recommend companies that carry LEC-Compliant products.

Note that LEC-Compliant Luminaires must not only meet all prior demanded specifications in effect by a jurisdiction but must also meet the demands of the LEC Prime Principle.

Please note that LEC's should be using full cut-off, low colour temperature LED lights (<3,000 K) that have LEC-Compliant approvals.

Use the purple buttons to the left to link to the web sites of the companies indicated. Here you will find descriptions and photos of their products as well as the specifications.

LEC-Compliant Manufacturers

Lumican luminaires

Fully LEC-Compliant Luminaires

6020 Gateway Blvd.,

Edmonton, Alberta, Canada

T6H 2H6

Web Site: www.lumican.com

Tel.: 877.844.8552

Effects of Light Pollution

The LEC Solution

LEC-Kit & Downloads

Sources of Light Pollution

News - Information - Resources

LEC-Type Organizations


International Dark-Sky Association (IDA)

Light-EfficientCommunities.com is an organization devoted to improving the quality of lighting for communities and their residents. The improved quality of lighting is then translated into improved health, well-being and safety for its inhabitants, human, flora, fauna and the environment. Better lighting also reduces energy consumption and costs leading to lower carbon footprints and reduced effects on climate change.

"The International Dark-Sky Association works to protect the night skies for present and future generations."

With chapters in many countries, the IDA works to improve and preserve dark skies by using educational products and approaches through its many chapters distributed world-wide.

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This is an excellent app for finding dark sky places near home as well as studying other places around the world to which you may be travelling. It provides incredible close-ups of your chosen area, making it easy to find those dark places even within a few kilometers.

Light levels are provided in various colours making for ease of use.