The US Embassy in Sri Lanka has converted its warehouse lighting from high-pressure sodium (HPS) bulbs to high-performance LED retrofit kits from in the existing high-bay fixtures.
The Embassy warehouse was using 250w HPS bulbs & ballasts in 30 high-bay fixtures. The total power draw of the lighting system was about 8.25kw.
The Embassy decided to replace the 250w HPS bulbs & ballasts with US made 98w LED retrofit kits in the existing 14” diameter high-bay fixtures, which could be installed by the security-cleared in-house staff.
The total system power reduction by converting from HPS to LED is 5.31kw or 75%, saving over 46,000 KwHrs per year of operation and allowing ROI in under 2 years.
In addition, the reduced heat gain from improved energy efficiency has lowered the peak ambient temperature of the warehouse by 10 degrees F, and the improved quality of light has reduced eye-strain, creating a much more comfortable and productive environment for warehouse workers.
The higher quality of light, longer lifespan and better energy efficiency make switching from traditional bulbs to quality LED a winning solution for energy savings, maintenance savings, cost savings, reduced heat and improvement of illumination. In addition, the LED products contain no toxic mercury and are 100% recyclable, making them much more environmentally responsible than traditional bulbs.
The warehouse employees are very happy with the quality of light and reduced heat and maintenance requirement.