We recently upgraded some old high pressure sodium lights to new modern LED highbays in a washbay facility.
The picture on the on the left with the old orange lights are the high pressure sodium bulbs - using approximately 295 watts per fixture. The new LEDs use 100 watts per fixture.
The HPS lights had a rated life of 20,000 hours and the new LEDs are rated at 70,000 hour life. The LEDs are under 5 year warranty. We used the Idaho Power lighting incentive program on this job and because of the run hours the incentives covered 100 percent of the cost to customer. The customer got the new LEDs installed at no net out of polcket cost to them. Energy savings are approximately $700 per year on the 8 fixtures in the washbay.