The Prairie School

Racine, Wisconsin, USA

In this retrofit project, Beta LED of Sturtevant, Wisconsin, worked with The Prairie School to significanly lower costs for outdoor lighting.

Beta LED replaced typical high-pressure sodium (HPS) parking-lot lights with the company's Edge LED Lighting fixtures. The result is a 53% decrease in energy costs, better uniformity and better-quality light than the HPS lighting. The photo at right clearly contrasts the clean,white LED lighting on the left side of the parking lot with the muddy-looking HPS lighting being phased out.

Project details:

Photopic vision is how the eye perceives objects and colors under bright light. Conversely, scotopic vision is how the eye perceives objects and colors under low-light conditions, such as a parking lot at night. The above measurements show that LED lights provide more perceived light at night while using much less energy.