- Direct replacement for standard HPS lamps
- Rated average life is the life obtained, on the average, from large representative groups of lamps in laboratory tests under controlled conditions at 10 or more operating hours per start
- Approximate lumen output at 40% of rated life
- It is based on survival of 65% of the lamps and allows for individual lamps or groups of lamps to vary considerably from the average
- For street and roadway lighting, parking lots and garages, warehouses and manufacturing facilities where lower maintece costs are desired