They commonly use standard Edison medium screw bases (E26) or candelabra screw bases (E12). Listed maximum bulb wattages across models include 100 watts, 60 watts, and 40 watts (depends on the specific fixture).
Most of these sconces require hardwired installation and note "No Switch on Fixture." Product details commonly state that adult assembly is required, and some listings include mounting hardware.
Many descriptions state the shades are made from hand-cut art glass that is hand-assembled using the traditional copper-foil soldering technique.
Some items are listed with certifications such as ETL or UL, while other listings explicitly state "No Certifications."
Weights in the sample listings range from about 1.76 pounds up to 7.0 pounds.