Common RGB LED bulb fittings include the standard E26 medium screw base found in A19 and BR30 shapes, while some decorative color-changing bulbs use the smaller E12 candelabra (BC) base and candelabra-style shapes.
Listed brightness for RGB bulbs typically ranges from about 450 lumens up to around 1,200 lumens. Manufacturers often give watt-equivalent labels corresponding roughly to 40W up to about 85W, depending on the bulb shape and model.
Many color-changing bulbs are dimmable and include white-light controls. Some list full-range dimming plus adjustable warm-to-cool white settings, while others offer a few specific white-temperature presets alongside the color modes.
Options vary by model: some bulbs offer a set of vivid RGB colors plus a couple of white-temperature choices, while smarter models advertise millions of colors together with adjustable warm-to-cool white shades.
Listed rated lifespans commonly appear as either about 13.7 years or about 22 years, depending on the specific bulb model.
Many color-changing bulbs are listed as suitable for damp locations and recommended for general-purpose fixtures. BR30-shaped RGB bulbs are also commonly described for recessed-can or ceiling floodlight use.