Powered by a WaveStream™ LED light engine inside, Superior optical control with multiple up/down distributions, Up to 115 lumens per watt, Over 50% energy savings when compared to fluorescent equivalent, Architectural quality construction, Low-glare frosted linear prismatic lens, Individual or continuous mounting with 4' and 8' lengths, 0-10V dimming driver standard, Integral daylight/occupancy sensor option, Emergency battery backup option