Name: Ceiling Lamp Material: Stained Glass shade, Wrought iron ceiling plate Light source: E27×1 Power: MAX40W*1 (Bulbs Not Included) Switch: Wall-controlled (not including switch) Shade size: Diameter: 15/20 inches (6/8 inches), height: 18CM Voltage: 110V-240V (In different countries, we will send you the electrical specifications according to your needs) Suitable for light source: incandescent bulb, energy-saving bulb, LED light Quality assurance: Pass international safety and environmental standards (CE certification, UL certification, PSE certification, ROSH certification). China Compulsory Certification (CCC) number that has passed the national CCC certification standard: 2017011001000785 Produce Process: Cut glass : The craftsman should cut the big piece stained glass into thousands small pieces, and smooth all the edge of glass Copper foil: The craftsman bind the small glass with copper foil, this can help th e glass be weld with tin one by one Weld: The craftsman put the small glass into the model according to the pattern, and weld the glass with tin Surface treatment: After weld, the lampshade need to change the tin color into black with chemical About Series: Search According Color Series, you can find all result of the design, including table lamp floor lamp, ceiling lamp pendant lamp chandelier lamp and wall lamp, the lampshade size including 8 inch 12 inch 16 inch 20 inch Tips: If you encounter any problems before and after the purchase, or when installing and using the luminaire, please contact us in time. NOTE: If damage occurs during shipment, I will assume all responsibility.