Quality Assurance--E27 Pendant Lamp Holder has obtained CE certification. Has 3 wires - live wire, neutral wire and ground wire, ensuring safety and trouble-free. Dimmable and dimmable--E27 lamp holder compatible with dimmer switch to adjust the brightness (this product does not include the dimmer) the length of the braided wire is 90cm. Simply loosen the screw that controls the length of the cable to shorten the length to your desired length. Bulb Requirements--Pendant Max Wattage: 60W, voltage: 220-240V. (This product does not contain light bulbs). Wide Application--Cable pendant lamp would be matched with incandescent or LED bulbs with E27 base, so you can decorate any place such as cafe, shop, restaurant, bar and home environment, adding the classic and vintage style to your space. Easy to Install--Light bulb pendant light includes all mounting hardware for quick and easy installation, it can be installed on a sloped or vaulted ceiling, then put the lampshade you like on the lamp head. Specification: Maximum lamp wattage: 60W Operating voltage: 110V-240V Power supply: 220V, 50Hz Bulb type: E27 standard (incandescent lamp/halogen lamp/LED) Style: Modern Power supply: wired