Most of the fixtures use the standard Edison medium screw base (E26). One option uses the smaller candelabra Edison screw base (E12).
Most E26 fixtures list a maximum bulb wattage of 100 W. Configured with four 100 W bulbs they can produce up to about 6000 lumens; three-bulb E26 variants are listed at roughly 4500 lumens. The E12 candelabra option is shown with four 60 W bulbs for up to about 3600 lumens.
These fixtures require hardwired installation. They are approved for damp locations and are suitable for bathroom use, including areas with shower steam.
Most fixtures list full-range dimmable capability. At least one collection explicitly notes compatibility with LED bulbs.
Fixture bodies are typically steel; one collection lists a combination of steel and stainless steel. Listed weights range from about 4.5 pounds up to roughly 13 pounds.
Clear glass provides bright, unfiltered light. Etched, opal, or frosted glass softens and diffuses light to reduce glare. Ribbed or patterned glass adds texture and subtle diffusion. Metal hoods direct light downward for more focused illumination.