Specification: Rated voltage: 250V, Rated current: 2A, Total Size: About 56x44mm (HxW), Material: Metal & heat resistant plastic, Features: Have CE certification, Lamp holder dimensions are 56mm high by 44mm (with lamp shade collar) 28mm without; and has a M10 (10mm) screw mounting thread. It has a 28mm ring thread with lamp shade collar that can be removed to allow the fitting of a lamp shade. Package Included: 1x Small Screw SES E14 Light Bulb Lamp Holder