Feature 1Standard E27 Threaded: Standard E27 threaded lamp holder, retro E26/E27 old bulb light source is recommended (bulb not included). 2High Quality Material: Aluminum lamp head, with iron and ABS internal structure, good texture, strong and durable. 3Safe To Use: The E26 E27 vintage light socket is flame retardant, fireproof, anti leakage, safe to use. 4Easy To Install: Easy installation, surface mounted fixed installation. Put in the light bulb and it will emit light. 5Wide Use: The combination of modern and retro is suitable for kitchen, bedroom, study room, living room, corridor, coffee shop, office, etc.Item Type: LampHolderMaterial: Aluminum + Iron + ABSHeight: Approx. 85mm / 3.3inBottom Diameter: Approx. 100mm / 3.9inWeight: Approx. 123g / 4.3oz Plug Voltage: 100-240VApplicable Bulb: E27/E26 (not included)Lifespan: 5 Years .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Lamp Holder1 x Fixed Iron Sheet2 x Expansion Tube2 x Flat Head Screw2 x Pointed ScrewNotePlease allow some errors due to manual measurement.