Most High Mast Light fixtures utilize IESNA Light Distribution Patterns (see image below). IESNA distribution patterns produce an overlapping light pattern resulting in high application efficacy, and excellent uniformity and glare control, that all result in outstanding visibility for large outdoor spaces. Translation: High Mast Lights utilize light distribution patterns that provide EVEN lighting WHERE YOU NEED IT. When functional visibility is a priority at the site, high mast lighting is often chosen over floodlights.
Zero uplight optics also reduce sky glow and usually meet Dark Sky requirements.
