The StairLite 2 is designed to satisfy all stairwell lighting requirements in one easy to install package. The StairLite 2 is a surface mounted, two lamp fluorescent lighting fixture that incorporates an integrally mounted ultrasonic motion detector, a system display panel, and an optional battery backup. Either one or both lamps can be controlled by the motion sensor. Bi-level lamp operation is standard so that one lamp will remain on constantly for security and the motion detector will activate the second lamp as needed to significantly reduce the operating cost. The StairLite 2 is designed for use in stairwells or any other areas of a building that have a low occupancy level.