Application of our lights: Commercial and exhibition locations, hotel, conference room, factory, office, house, school, hospital and other public places, living room, bedroom, kitchen, dining room, home office/study, conservatory, utility/laundry room, hallway, porch, garage, patio. Shade Material: Metal Diameter: 7.87in/20cm Light Source: E26/E27 Bulb(not including) Bulb Type: LED/CFL/Incandesce Wattage Per Bulb:Max 40W Irradiation area:10-15 square mater Voltage: 220 volts Packing list:1*Wall Light After-sales service: 1. Log in to your account at Amazon.com, click &quotYour Account&quot and click &quotYour Order&quot. 2. Click on the specific product you purchased from us and select &quotContact Seller&quot. 3. Provide order number and picture, will provide you with the best answer Thank you for visiting and enjoying your shopping!