Tiffany Lampshade: The production process of this white lampshade is exquisite and meticulous. It requires cutting the entire piece of Tiffany colored glass, wrapping it in a copper groove, and then carefully welding it by hand with a master. Finally, a small amount of oil is applied for protection Characteristics of Tiffany Lampshade: The glass thickness is relatively thin, so it is fragile. Please handle it with care. Each piece of glass has subtle differences, so each lampshade is unique. It presents different colors when turning off and on, very dazzling and elegant Bulb Suggestion: All bulb base in E26 can be used, LED G45/A15/A19 bulb is better, Max 60W. Tiffany wall sconce can be dimmable with dimmer switch and dimmable bulb, both switch and bulb are not included. UL listed: All GILGGAK lighting fixture follow UL and cUL standards, just buy with confidence and feel free to contact us if you have any doubts or troubles. GILGGAK Tiffany Wall Sconce