A plant lit by metal halide spends a quarter to a third of its power bill on light. A high-bay retrofit is usually the fastest payback in the building.
Metal halide high-bays draw 455 W at the wall for a 400 W lamp, lose a third of their output in the first year and take ten minutes to come back after a power dip. A shop that runs two shifts is paying for all of that six thousand hours a year.
The HB Series puts 155 lumens per watt into a deep radial heat sink built for 45 C ambient under a steel roof in July. A 150 W HB replaces a 400 W metal halide one for one on 20 to 30 foot trusses. Occupancy sensors drop the aisles nobody is in, and the LB Series covers docks, mezzanines and anything under 20 feet.
Order picking 30 to 50 fc. Manufacturing 30 to 50, fine work 50 to 100. Loading docks 10 to 30. IES based guidance, confirm with a layout.
The planner works it from your fixture count, hours and rate. Ontario plants on a two-shift schedule typically land inside two years before any incentive.
Optics decide that. A 60 degree lens for high narrow aisles, 120 degree for open floor. The layout picks the lens per area.