This RAB Lighting GL100R ruby colored Vaporproof threaded glass globe is made of heat resistant crystal lime glass and is suitable for use as a replacement globe for RAB Lighting Vaporproof fixtures with light bulbs up to 100W. It measures 6 3/4 x 3 9/16 inches/17.2 x 8.7 cm H x W . H is height, the vertical distance from bottom to top W is width, the horizontal distance from left to right. It is suitable for use in wet locations if used with Vaporproof fixtures or other Underwriters Laboratories UL listed fixtures. Fixture must be installed with its base pointing upward when outdoors. This threaded glass globe can be used in a wide range of lighting applications, including decoration, signaling, and others.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.