This 2 Light Halogen Wall Sconce from the Crystal Skye collection, features a triangular crystal prisms that rest inside Chrome details and stand ready to reflect light in a hundred different ways. Rounded crystals on the bottom reflect the inner light. Cylinder shaped crystal glass shade Wipe clean with a dry cloth Bulb Base and Compatibility Bulb Base - G9: A bi pin or 'bi pin socket', G9 bulbs have a pin spread of 9 mm and are used mostly in 120V or 230V fixtures with halogen bulbs Compatible Bulb Types: G9 Bulb base uses primarily a Halogen bulb but is also available as Fluorescent, LED and Xenon / Krypton Compliance Energy Star is an international standard for energy efficient consumer products originated in the United States of America. Devices carrying the Energy Star service mark generally use 20%–30% less energy than required by federal standards UL Listed - Indicates whether a product meets standards and compliance guidelines set by Underwriters Laboratories. This listing determines what types of rooms or environments a product can be used in safely ADA Compliance - The Americans with Disabilities Act (ADA). Fixtures hung between 27" and 80" above the floor must have an extension of 4" or less; this applies to wall lights hung in walkways, halls, corridors, passageways or aisles. Ceiling Fixtures must be hung no lower than 80”