FeaturesUp to 140 LPW for maximum energy savings versus fluorescent troffersMultiple lumen packages for each configurationClass 2, constant driver with standard 0 to 10 VDC dimmingLumens maintenance L70 at 193000 hr/TM21 rated L90 at 60000 hrDLC and DLC premium qualifiedCold rolled steel housing materialA12 high performance frost (0.125 in THK)Cold rolled steel housing material