Borden Lighting has installed modern LED walkway lighting in the Presidio of San Francisco to enhance the beauty, safety and energy efficiency of the national park. Using Bridgelux LED arrays, Borden Lighting designed a unique indirect post top walkway luminaire. The Borden luminaire was developed to conform to "Dark Sky" lighting design concepts that effectively illuminate the pathway while preventing glare and light pollution. The original lighting design plan called for the use of Metal Halide luminaires, not for LED lighting. Borden decided to us...