Transitioning from Metal Halide to LEDs for Shipyard Lighting Systems

Shipyard facilities require brilliant illumination inside the building, due to detailed maintenance, repair and restoration tasks that come with operations. Unfortunately, lights do not thrive well in such establishments. Shipyards are extremely humid, corrosive and flammable. Furthermore, the environment is filled with vibration from constant use of heavy-duty equipment. Nowadays, shipbuilding and repair businesses are transitioning from metal halide lamps to LED fixtures, in order to improve illumination inside the facility. This article takes a closer look at Donjon Shipbuilding and Repair’s adoption of boat LED lights.

Addressing Visibility Issues

The 200,000 square-foot shipyard facility boasts 125-foot ceilings to serve 1,000-foot long commercial vessels. Before transitioning to LEDs, the building utilized 266, 1000-watt metal halide fixtures. The high ceilings made the units difficult to reach for periodic ballast maintenance and re-lamping projects, which were frequent due to the rugged environment.

Furthermore, operators used the luminaries around the clock – catering to both daytime and nighttime workers. Starting the metal halide lighting systems took approximately 20 minutes per day. According to a technician working for the company, individuals were forced to use flashlights during work because general lighting was not powerful enough to facilitate accurate readouts on measuring devices.

Transitioning to LEDs

The shipyard business replaced the metal halide lamps with 79 LED fixtures, which surpasses illumination levels of the previous lighting system. Capable of offering 60,000 lumens of white light per unit, the high bay lights are highly energy efficient. Moreover, the LED fixtures are lightweight, streamlining access during installation. The high bay lamps operate on 480V and provide lighting efficiency rates at 115 lumens per watt.

To ensure consistent operation in extreme conditions, the units feature an ambient operating temperature range of -40°F to + 149°F. Overall, the new LED lighting system will come with at least 10 years of zero maintenance.