Product Information: The industrial black chandelier has a built-in standard E12 socket, suggest using a dimmable E12*20 base bulb (Max 40W, 120V), it could be a fully dimmable and compatible dimmer switch. Bulbs and dimmer switch not included. Product Appearance: The round chandelier uses a classic 2-tiers design with a high-quality special iron frame and a fine and lustrous matte jet black finish. It is a perfect home decoration for any space with high ceilings and provides a quaint industrial atmosphere.The double-layered design looks good and brightens up your space nicely. Product Installation: All the necessary installation hardware is included in the package for quick and easy installation. Feel free to contact us with any questions. Product Usage: Industrial with a vintage feel, this black wagon wheel chandelier is perfect for wide application, kitchen islands, dining rooms, living rooms, hallways, entryways, foyers, stairways, farmhouses, bars, cafes, hotels, restaurants, etc.