![](https://gpnmag.com/wp-content/uploads/2016/12/Innotech-lamps.jpg)
Double-ended lamps
These commercial-grade high pressure sodium lamps feature 1,200+ PAR, a less than 6 percent drop in lumen and PAR output and PAR output at 15,000 hours. Metal halide lamps provide well-balanced spectrum with minimal output depreciation.
from Innotech Systems