Answer
Mar 02, 2026 - 12:21 PM
The number of fixtures required depends on ceiling height and desired footcandle levels. For a 20-foot ceiling targeting 30 footcandles, approximately one 165W fixture per 400 to 500 square feet is common, resulting in roughly 20 to 25 fixtures for a 10,000 square foot space. For higher ceilings around 25 feet using the 220W model, coverage may extend to 600 square feet per fixture depending on layout, reducing overall fixture count. A professional photometric layout is recommended to confirm spacing and footcandle targets.
