4.1-inch aperture; Up to 119 lm/W; Power Over Cable suspension; Multiple standard outputs from 400 up to 1600 lm/ft; Individual luminaires, continuous row lengths, or multi-arm patterns; 1 percent 0-10v Dimming is standard; Extruded aluminum housing with die-cast end caps; L80 calculated at 80,000 hours; 5 Year limited warranty