Research & Tools

Resources for Action

From scientific research to practical tools β€” everything you need to understand, explain, and fight light pollution in Kerr County and beyond.

Toolkits & Assessments

Common outdoor lighting fixture types
Developers, Builders, Remodelers & DIY
Choosing Dark Sky Compliant Fixtures

Not all fixtures are created equal. Barn lights, cobra heads, wall packs, sconces, flood lights, and post tops each have compliant and non-compliant versions. The key criteria: fully shielded (zero uplight), lamp below the fixture lip, and color temperature ≀2700K. Our Volunteer Training Manual includes a full fixture-by-fixture replacement guide with specific product recommendations.

Texas Legislative & State Actions

From Senate recognition of dark sky advocates to proposed legislation that would give Texans legal standing against light trespass β€” our state is paying attention.

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Texas Senate Resolution No. 451
Texas Senate Β· 89th Legislature Β· April 2025
The Texas Senate formally recognized April 25, 2025 as Dark Sky Day and commended DarkSky Texas for its work to preserve rural night skies, conserve energy, reduce glare, and protect wildlife. The resolution acknowledges the economic value of dark sky tourism and the importance of warm-hued, properly shielded lighting statewide.
πŸ“„ View Senate Resolution
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2027 Light Trespass Legislation
90th Texas Legislature Β· Proposed for 2027 Session
Texas currently has no statutory remedy for property owners harmed by a neighbor's excessive, unshielded outdoor lighting. This initiative proposes three targeted changes:
  • Health & Safety Code Β§343.011 β€” defines lighting that interferes with the use and enjoyment of land as a nuisance in unincorporated areas.
  • Health & Safety Code Β§342.004 β€” adds the same definition for municipal areas.
  • Penal Code Β§42.01 β€” adds excessive light trespass to disorderly conduct. Light is presumed excessive above 1,000 lumens within any 3 ft square area unless shielded and directed so the source can't be seen from other property β€” after notice from a magistrate or peace officer.
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Contact Your Legislators
Rep. Virdell Β· Sen. Flores Β· Kerr County
Ask your State Representative and Senator to sponsor the 2027 Light Trespass Initiative. Enter your name, preview a personalized letter, and reach both legislators with one click β€” no printing or stamps required.
βœ‰οΈ Write Your Letter β†’

Have a Resource to Share?

If you've found a great study, tool, or local example that supports dark sky preservation, we'd love to hear about it and potentially add it here.