For E26/E27 wire and bulbs and connected lamps, electrical lighting, display fixtures. The bulb holder could be mounted on a socket and cord for hardwired lighting with exposed bulb for re-fitting. The light holder operates at 250 volts maximum, maximum power: 60W. Product Height: 6.8cm, Base Diameter: 3.2cm. It's a great addition to any style space with an exposed vintage bulb, providing ambient or task lighting for vintage fixtures. Product Description: Antique Brass Lampholder for E26/E27 Bulbs with Screw ON/OFF Switch. Specifications: Rated for up to 60W, 110v-250v Standard Medium E26/E27 Base Brass Finish, Keyless Shell Socket Electroplate Size, 1.4" Shell Diameter Cap is 1/8" threaded for lamp nipple Diameter: 30mm Height 74mm Switch Type: Knot On/Off Materials: Brass Style: Traditional Package Includes: 1 Piece Brass Lamp Holder About chromatic aberration: The goods sold are all taken in kind, but due to different lighting, monitors, etc., there will be a little color difference, which is a normal phenomenon, not a quality problem! About size: The dimensions of the products sold are all manually measured. Due to different measurement methods and tools, there may be an error of 1-2mm, which is normal!becomeveryrich