About the Program
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Lighting Application and Design
Environment and Energy Efficiency
Evaluation and Testing
Regulation and Policy
Guides and Metrics
What is light pollution?
What is sky glow?
How is sky glow measured or calculated?
What is light trespass?
How is light trespass measured or calculated?
What is glare?
How is the issue of light pollution currently being addressed?
What are lighting environmental zones?
How can sky glow be reduced?
How is light trespass controlled?
How is glare from outdoor lighting controlled?
What are the IESNA cutoff classifications?
Are the IESNA cutoff classifications a good indicator of direct uplight?
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