Duvon™ retrofitted 100-foot port masts with marine-grade Liberty Field Series LED — 316 stainless hardware, salt-spray-tested coat, 24/7 stevedoring uptime.

Sea-port lighting carries every challenge a lighting designer can name: salt corrosion, twenty-four-hour operations, severe wind loading, and an aggressive operating-cost ceiling. Conventional metal-halide masts at this site were failing on a quarterly cycle.

Duvon's specification placed Freedom Field Series 500W heads on the existing 100-foot masts with a marine-grade housing package: 316 stainless hardware, salt-spray-validated powder coat, and corrosion-isolating mast bushings. Output was modelled court-by-court of operational area to deliver 5-fc maintained yard average — the marine industry's de-facto safe-operating threshold.

The finished installation supports 24/7 stevedoring, eliminated the prior quarterly service callouts, and reduced port-side lighting energy by 55% measured against the previous twelve months.

Highlights

Lighting Class:  IES RP-8 / port-operations

Average Illuminance:  5 fc maintained yard average horizontal

Uniformity:  1.5:1

Fixtures:  Freedom Series 500W LED High-Mast Lights (5000K, marine-grade)

Energy Savings:  Up to 55% vs HID