All necessary parts for the lamp are already connected. You don't have to worry about the installation that is very simple. Technical data: Lamp size: D: 24 cm x H: 26 cm; Cable length: 100 cm (adjustable); Maximum power: 60 watts; Voltage: 220 V; VDE wire certified; Ceiling plate size: 10 cm Absolute safety: low carbon surface, environmental protection, non-toxic, rust-proof, uniform colour and durability. Simple structure: retro style, elegant appearance. It is not only a lamp, but can also decorate your house. Application: cafe, bar, club, living room, bedroom, kitchen, dining room, home office/work room, conservatory, laundry room, floor, porch, garage, patio. Suggested room size: 10-12㎡ Product information: Diameter: 24 cm, height: 26 cm Cable length: 80 cm, length can be adjusted Weight: 1200 g E27 socket without bulb Diameter of cover plate: 10 cm Material: Iron + aluminium + wood