The U.S. Navy was looking for a new way of lighting the King Posts on some of the ships. King post is used for cargo handling and takes a fair amount of abuse. The ships they were trying this on featured two king posts – fore and aft.
Situation
- Currently they use 2 x 1000W per post light output not good this is an arduous application lights have mixed life expectancy
- Salt water climate makes weather-proofing and protection from the salt water a must
- Energy costs were not an issue although we deliver great coverage and brightness with a LED 300w
Solution
The fore and aft areas to be lit were not all that large, only about 70’ x 90’, but they did encompass a full 180 degrees.
Constellation Lighting developed a Marine grade 316 Stainless Steel LED 300W light with a 60 degree spread all lights have staples steel cap screws with Nylock nuts to accommodate any vibration that can be encountered.
With each 300W light replacing a 1000W HPS we were able to cover the spread and easily light the cargo areas as needed. We also fabricated high quality, heavy duty stainless steel brackets to mount the lights on the king post and be adjustable.
Results
The lights have been to sea and weathered well. There have been no failures of lights or of the brackets. The U.S. Navy continues to purchase lights and brackets to retrofit.
This light is now used in the Salt & Chemical industries and commercial container ports.
