Recently, Digital Lumens Intelligent LED Lighting System has supported Silver Beauty, a Chicago-area company that builds and leases warehouses for lighting retrofit in a 177,413-square foot facility.
Previously, the facility used 1,000-Watt high-intensity discharge lamps, which were replaced with the Digital Lumens 18,000-lumen intelligent fixtures, all with integrated occupancy and daylight harvesting sensors. The project rebate was provided by ComEd under its Smart Ideas program.
In the Silver Beauty facility, the Digital Lumens system automatically provides the target illumination required when the space is occupied, then dims to 40% in well-traveled aisles, and 10% elsewhere for security purposes, when a space is unoccupied. Lighting instantaneously turns back on when personnel, such as a rapidly moving forklift operator, trigger an occupancy sensor. Because the Digital Lumen fixtures have integrated daylight sensors, they assess available ambient light and dim or turn off when enough natural light is present. On sunny days, skylights provide up to 40% of the lighting needed to illuminate the warehouse.
Since installation, the new LED-based industrial lighting system has reduced the facility's $78,335 annual lighting costs by 90%, to just under $4,078 or 3.9¿ per square foot, while delivering brighter, higher quality light for its tenant's 24x7 warehousing operations.
