The typical bulb-shared lamp with a screw base. The standard general service lamp; the most common incandescent household lamp.

Localized and directional lighting used to highlight, focus attention and dramatize. Accent lighting fixtures include track, recessed, and specialty products.

A translucent or transparent plastic, suitable for indoor or outdoor use. May be clear, opal, or colored. Does not yellow, but it is not shatter-resistant.

An oxidized finish, most often found on brass, to create a weathered appearance. Also called rust.

How you point or direct an adjustable accent light. The aiming angle is calculated from vertical, or nadir. An aiming angle of 30 degrees is effective for paintings and drawings.

A mixture of two or more different metals.

Also known as AC. A current that reverses, or alternates, direction. Households use AC that alternates at 60 cycle per second.

Method of anodizing, a term for brightened, anodized aluminum.

Lighting that provides background brightness, so you can move around a space and that reduces the contrast between sources of local brightness.

Also known as Amp. Unit of electrical current. The rate of electricity flow and circuit capacity are stated in amperes.