This RAB Lighting H101W landscape bell shaped white floodlight has a powder coated die cast aluminum housing for durability and produces 150W of output. It has a high temperature silicone gasket that extends around both the socket and the lamp for protection in wet environments, and its lamp is recessed 1 from its lip for side glare reduction. It has a set screw for a hood, grill, or visor attachment not included , and a 1/2 National Pipe Straight NPS threaded arm with locking swivel that fits most junction box covers. A hood or visor must be used if this floodlight is used in outdoor applications where it shines upward. This floodlight has an overall length of 10 25.4 cm and a diameter of 5 5/8 14.3 cm . It is Underwriters Laboratories UL listed as suitable for use in wet locations and for mounting within 4 of the ground. This bell shaped floodlight is suitable for a wide range of outdoor lighting applications.RAB Lighting manufactures LED, metal halide, and high pressure sodium lighting fixtures and controls for indoor and outdoor applications. The company, founded in 1946, is headquartered in Northvale, NJ.