4.3.5 Dark Skies Fixture Types

Selected luminaires should have the
International Dark Sky Association
(IDA) Seal. This third- party seal certifies that outdoor fixtures minimize glare, while reducing light trespass and sky glow. To minimize light pollution, dark skies fixtures should:
  • Only light the area needed;
  • Be no brighter than needed;
  • Minimize blue light emissions; and
  • Be fully shielded, so that the light bulb is not visible.