The Daystar AC Reflector is efficient with 1000-watt high pressure sodium and metal halide bulbs and features an aluminum interior and patented double-wall design. With its six-inch ducts and flanges, the Daystar AC Reflector is a particularly smart choice for customers looking to vent in-line. The Daystar AC Reflector also includes a safety lens. Measures 12 ½" X 7 3/8" X 22 ½".