BULB REQUIREMENTS This ceiling light uses 8 medium base (E27) bulbs, max 40W LED recommended (bulb not included). Can be fully dimmable when used with dimmable bulbs and compatible dimmer to create the perfect atmosphere (dimmer not included). ADJUSTABLE HEIGHT The mid-century Sputnik fixture has 4 extension rods, adjustable total length of 70cm height. You can adjust the hanging height to meet your needs. Slanted Ceilings - This Sputnik chandelier with a durable pivot can be mounted on vaulted or sloped ceilings. Attention: Before installing the slope mounted suspension, please make sure the height is adjusted and the base is fixed in a firm place (safety first). UL CERTIFICATION, SAFETY & DURABILITY - UL certification has excellent quality and safety. Brushed copper and black paint finishes can match well and the luxury and mystery of space can be expressed. So it's easy to be cool. EASY INSTALLATION - All arms are pre-wired for easy installation. All mounting hardware and quick installation guide are included in the package. - Goeco Modern Chandelier, 8 Light, for Dining Room, Living Room, Bedroom in Black