Stair Lighter TSL9 is highly optimized for use in unattended stairwells. It combines rugged vandal resistant construction with state-of-the-art sensor control. The purpose-built shape of the TSL9 provides optimal photometric distribution for stairway lighting while the optical pattern punched into the housing allows for protection of the occupancy sensor without reducing its effectiveness. Available with multiple battery back-up options, TSL9 performs in the wall or ceiling mount position. It is available in 2700K, 3000K, 3500K, 4000K, and 5000K CCT with 82 CRI.