Delamping

Delamping refers to the process of removing or reducing the number of artificial light fixtures, particularly fluorescent or high-intensity discharge (HID) lamps, from a building or space. This practice is often undertaken for energy efficiency, cost savings, or to improve lighting quality and occupant well-being. The decision to delamp may also be influenced by advancements in lighting technology, such as the shift toward LED fixtures, which offer better energy performance and longevity.

The primary motivation behind delamping is cost reduction, as lighting can account for a significant portion of a building’s energy consumption. By removing underperforming or redundant fixtures, organizations can lower electricity bills without sacrificing essential illumination. Additionally, delamping can reduce maintenance costs, as fewer lamps require replacement or cleaning over time. However, improper delamping can lead to uneven lighting, glare, or insufficient illumination in certain areas, potentially affecting productivity, safety, or compliance with lighting standards.

Before delamping, a thorough assessment is typically conducted to evaluate the existing lighting layout, occupancy patterns, and the specific needs of the space. Lighting consultants or energy auditors may use tools such as daylight analysis, lumen maintenance calculations, and occupant surveys to determine which fixtures can be safely removed. Building codes and regulations often specify minimum lighting levels for different environments, so compliance must be ensured.

Delamping is most commonly applied in commercial, industrial, and institutional settings, including offices, schools, warehouses, and retail spaces. In some cases, partial delamping—where only certain fixtures are removed—is preferred to maintain consistent lighting levels. When combined with other energy-efficient measures, such as motion sensors or daylight harvesting, delamping can contribute to broader sustainability goals while improving operational efficiency.