Most black flush mount lights use the standard E26 (Edison Medium) socket; a smaller number use the candelabra E12 socket.
Socket counts vary by model but typically range from one socket up to three sockets.
Common shade materials include glass, metal, crystal, and wood; some fixtures are designed without a separate shade.
Many models offer a simple on/off control, while at least one listing specifies full-range dimmable capability—check the product details for dimmer compatibility.
Most listings indicate hardwired installation and require adult assembly. Some products include mounting hardware; others may or may not include tools. Verify the specific product listing to see which hardware and tools (if any) are provided.
Some black flush mount lights are designed for covered outdoor use and list weather-resistant features. Listings for outdoor-ready fixtures may also note functions such as dusk-to-dawn operation and motion sensing for porches, patios, and entryways.
Many listings include mounting hardware but not light bulbs. While one listing specifically noted a single LED bulb included, most items state "Light bulbs not included"—always check the product contents before purchase.
Maximum bulb wattages in the listings range from about 40 watts up to 60 watts—verify the specific product label for the allowed maximum.