Why are some streetlights brighter or more white than others?
Since the early 1990s, standard lighting installations have been “yellow” High Pressure Sodium (HPS) lamps. HPS lamps typically have a five-year lifecycle, however, those in BWL’s service territory are ten years overdue for replacement. As HPS lights degrade, they lose 60 percent of their original light output, while LEDs maintain their original brightness.
During the transition, when lights burnout and require maintenance, the BWL will replace them with LEDs until a system upgrade comes to the area.