The combination of all the adverse or obtrusive effects of electric light that produces artificial sky glow, including: unnecessary, unwanted, or wasted light; light that damages or degrades the nighttime environment; and light that negatively impacts humans and other species.
© 2025 DesignLights Consortium. The DesignLights Consortium is a project of Efficiency Forward, Inc., a non-profit 501(c)3 organization. Privacy Policy Terms of Use