TL;DR
A dark-sky fixture is an outdoor luminaire that is fully shielded, emitting no light above the horizontal plane, so its output lands on the ground where it is useful instead of scattering into the night sky as glare and light pollution. The DarkSky International (formerly IDA) seal of approval identifies certified products, and a growing number of municipal lighting ordinances require full-cutoff designs, warm color temperatures of 3000K or below, and sometimes curfew dimming.
What it means
A dark-sky fixture is an outdoor luminaire that is fully shielded, emitting no light above the horizontal plane, so its output lands on the ground where it is useful instead of scattering into the night sky as glare and light pollution. The DarkSky International (formerly IDA) seal of approval identifies certified products, and a growing number of municipal lighting ordinances require full-cutoff designs, warm color temperatures of 3000K or below, and sometimes curfew dimming. In landscape design they also spare neighbors the bedroom-window floodlight complaint.
Where it sits in the glossary
Dark-sky fixture is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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