Answer
Feb 26, 2026 - 04:38 PM
To estimate quantity, divide the total square footage by the coverage area per fixture. A 5,000-lumen 2x4 flat panel mounted at 9 feet can effectively illuminate approximately 100 to 140 square feet depending on reflectivity and desired brightness. For example, a 1,200 square foot office typically requires between 9 and 12 panels depending on layout and target illumination levels. A 4,000-lumen 2x2 panel may cover approximately 80 to 110 square feet per fixture under similar conditions.
