Warehouses, factories, and gymnasiums demand high‑quality lighting. Metal halide lamps were once the standard, but LED high bays are rapidly replacing them. This article compares energy consumption and maintenance costs.
A 400W metal halide lamp initially delivers ~36,000 lumens, but after 6,000 hours, lumen depreciation can reach 30%, dropping to below 25,000 lumens. In contrast, a 150W LED high bay outputs 22,500 lumens initially and retains >70% (≈15,750 lumens) after 50,000 hours. LED’s long life means stable illumination.
Savings per fixture: $149/year. For a warehouse with 200 lights, annual savings approach $30,000.
Metal halide lamps need replacement every 1‑2 years. Each replacement (lamp + labor) costs $50‑80. LED high bays require no replacement for at least 10 years, eliminating maintenance costs and ladder risks.
Metal halide typically has Ra <70, causing color distortion that may affect quality inspections. LED high bays can achieve Ra80+ (some Ra90+), making object colors true and reducing errors.
LED high bays easily integrate motion sensors and dimming. Lights automatically dim or turn off during unoccupied periods, saving an additional 20‑40% energy. Metal halide cannot offer such fine control.
If you are planning a lighting upgrade for a warehouse or factory, consider LED high bays as your first choice. We can provide illumination simulation and energy saving calculations to support your data‑driven decision.
