![]() ![]() ![]() Flush mount: Light fixture that hangs flush on the ceiling.Fixture: Any decorative electrical item that permanently affixes to a wall or ceiling.Fitter: Decorative rim that holds glass shades on place on a light fixture.Fish tape: Extending metal tape with a hook on the end used to pull wires through a wall.Finial: Decorative item with threaded base used to secure a lampshade to a harp and “finish” the look of a table or floor lamp.Filament: Thin tungsten wire that emits light when heated by an electrical current.Faceplate: Switch box or outlet cover plate.Electric meter: device that measures amount of electricity consumed.Electrical box: Box in the wall where electrical connections are made to fixtures and that supports fixtures.Efficacy: Lumens per watt measure of the efficiency of a light source.Duplex receptacle: Outlet with 2 plug-in connections.Discharge lamp: Light bulb which incorporates an electronic discharge through a gas or vapor.Dimmer: Switch that allows you to vary the intensity of a light fixture.Diffuser: Translucent “shield” designed to reduce glare and filter light more evenly.DC (direct current): Electrical current that flows in only one direction, not a complete circuit.Current:Flow of electricity through a wire, measured in amps.Cord switch: On-off switch for a portable lamp that attaches along the cord.Continuity Tester: Test device for electrical circuit.Contacts: Connection point for electrical wires.Conduit: Rigid or flexible tubing that holds electrical wires inside.Conductor: Wire that carries electricity.Common: Dark-colored screw on an electrical switch.Color rendition index: A measure of the effect of a particular kind of light bulb on a colored surface (the larger the number, the truer to the color in real sunlight measured between 1 and 100).Collar: Threaded ring that holds the canopy to the ceiling on a chandelier.Clip adapter: Metal bulb clip that attaches to a lampshade converting it to a shade that clips onto the bulb.Check ring: Metal disk that holds candlecover or neck on a light fixture.Circuit breaker: Switch that interrupts electricity in case of a short or overload.Circuit: Path of electrical flow (wiring).Chimney: Open-ended glass surround used on an oil lamp to hold lampshade.Canopy: Decorative plate that goes flush to the ceiling on a chandelier or ceiling light that conceals electrical box.Candlepower: Luminous intensity of a light source measured in candela.Candela: Unit of light intensity (SI), roughly equivalent to 12.57 lumens.Candlecover: Plastic, metal, or cardboard sleeve that simulates the look of a wax candle (to conceal a socket).BX or flexible metal conduit: Bendable tubing that holds electrical lines.Breaker box: Metal box with fuses or circuit breakers that breaks down electrical service into smaller circuits.“bowl” used on chandeliers and sconces, often pierced to hold crystals (originally used to catch wax dripping from candles) Bobeche: Decorative crystal, metal, wood, etc.Barn doors: Hinged shutters used to precisely shape the beam of a lamp. ![]() Ballast: Device used to control the current and prevent overheating in a discharge lamp.Baffle: Waffle device used to reduce glare.Backplate: Flat plate behind wall sconce to cover electrical box.Amp: Measure of rate of electrical flow in a circuit.Ambient lighting: General lighting in a room.Accent lighting: Lighting that focuses on a specific object or architectural feature.AC: Alternating current: An electrical current that reverses its direction at regular intervals.Here's a list of definitions for those parts, pieces and terms to help. Looking for the name of "that" piece or part on a light fixture? Or maybe you’re trying to explain an idea to your electrician. How to Size & Hang a Chandelier: Tips & FAQs. ![]()
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