Sensor Mounting Brackets: Bracket Type - Tubular Sensor Mounting; Shape/Configuration - 90-Degree; Bracket Mounting - Fixed, (2) Hole; Sensor Mounting - Hole; Material - Steel, Zinc Plate; Dimensions - 1.77"x1.18x3.29"(45x30x83.5mm); Use With - Tubular Fluorescent Lights; Additional Information - Mounts around Light