Five Principles for Responsible Outdoor Lighting

Too often, outdoor electric lighting installations at night are overlit, left on when not needed, and harmful to the environment. As a result, light pollution is a growing global issue that can negatively affect our environment and impact our quality of life. DarkSky and the Illuminating Engineering Society jointly published the Five Principles for Responsible Outdoor Lighting to prevent and reduce light pollution through the proper application of quality outdoor electric lighting.

By applying these principles, properly designed electric lighting at night can be beautiful, healthy, and functional. Projects that incorporate these principles will save energy and money, reduce light pollution, and minimize wildlife disruption.