Specification: Product Name Socket Lamp Holder Model MR16 Voltage 250V Current 0.4A Socket Size 17 x 9.5mm / 0.67" x 0.37" (Diameter*H) Total Length 13cm/ 5.1" Color White External Material Ceramic Net Weight 15g Package Content 1 x MR16 Socket Lamp Holder Description:MR16 halogen Photo/LED/Picture/Ceiling. lamp bulb socket base fixtures. holder fitting for standard MR16 lamp.Item can use for with our LED or halogen lamps.