One lux is equivalent to one lumen per square meter. The opposite effect is wall grazing. NEMA 2 = Indoor use, protection against falling dirt and light splashing of water. A material that completely blocks visible light. A lamp with a CCT value comparable to that of daylight, generally between 5500K and 6500K. Lighting Fixtures in Stanwood on YP.com. Lighting designed to illuminate an object from behind, which causes an appealing glow effect around its edges. The incentives are paid out based on the parameters correlating to the item sold. Light arriving at a surface, expressed in lumens per unit area. This is only a quick review of lighting terminology for the theatre. A ceiling lighting fixture that has a stem that separates (or creates a visible gap between) the light from the ceiling. Lighting configuration where several fixtures are mounted on a common track, which provides them with power and allows each of them to be oriented in a different direction. Downlights can be recessed, surface-mounted or pendant. }); Download our Lighting Terms Glossary 2018 Edition, ANSI (American National Standards Institute), Pressed Aluminized Reflector Lamp (PAR Lamp), ⚠ We're here to serve you during the COVID-19 pandemic. Some examples of HID lighting are mercury-vapor, metal-halide, xenon, high-pressure sodium and low-pressure sodium lamps. Common term for the housing of a recessed downlight. A fixture that attaches to the ceiling canopy with a stem or part that creates a gap between the fixture and ceiling. The use of under cabinet lights for food preparation areas in kitchens is an example of task lighting. Bulb (Light Fixture) A glass vessel that produces light when an electric current passes through it. It is usually expressed in candles per square inch or Lamberts or foot Lamberts. The beam angle is measured between the downward direction, where the lamp provides maximum lighting intensity, and the direction in which intensity drops to 50%. Each lighting circuit is connected to a circuit breaker, and it interrupts current automatically if an overload or fault is detected. The use of lighting for practical or artistic purposes. Dimming ballasts are special ballasts which, when used together with a dimmer, will vary the light output of a lamp. Typically, this causes a buzz or a hum. A unit of electrical power equal to 1 joule per second. ... Luminaire: A lighting fixture … mlaro. This happens in fluorescent or HID lamps as the chemical balance becomes unbalanced and causes the lamp to shift to a pink, green, orange, or purple tint. portalId: "455757", An emerging lighting technology that uses radiofrequency to stimulate a contained gas and create a small but very bright ball of plasma. Fixture Parts Terminology. A specific type of fluorescent lamp that has a tubular shape and comes equipped with pins at its ends, to be connected to the voltage output of a magnetic or electronic ballast. Occupancy sensors are an effective energy-saving measure. A type of electromagnetic radiation, invisible to the human eye (i.e., beyond the visible spectrum) with a wavelength of 10 to 380 nanometers. Lighting output of a new lamp, which diminishes with use. DLC is a rating system that identifies, through testing and manufacturer data, which lighting products are generally regarded as being acceptable for their intended use. The technology became commercial very recently, however, and has not achieved a market share comparable to that of LED. Adjective used to describe a lamp or fixture whose lighting output can be modulated with a dimmer. High-power lighting fixtures that typically use HID bulbs or their LED equivalents. There are two types of glare: A light source that creates shadows with a very sharp edge when cast on objects. Lighting fixture used to provide outdoor area lighting, where the lamp is found on top of a pole, often with a reflective housing that achieves a characteristic lighting pattern. Dimming method that uses incremental and fixed lighting levels, as opposed to gradual dimming from to OFF to 100% output. BSC - Lighting Terminology. Time required by an HID lamp to achieve full brightness after it has been turned off. While some of these are terms for equipment, knowledge of them will assist in explaining more complicated lighting technology as we go. Bulb Base (Light Fixture) This is the type of glare felt when exposed to a potent HID light or when the sun is directly visible through a window. }); hbspt.forms.create({ Angle between the orientation of a light source and the viewing direction. A low-profile LED fixture that uses an edge-lit panel, designed to replace linear and parabolic fluorescent fixtures. Energy transmission in the form of waves. }); hbspt.forms.create({ A compact lighting fixture that directs its output downward, hence its name. An older ballast that regulates electricity incrementally. When it comes to lighting jargon, think lumens not watts. This kind of lighting is mounted to the ceiling with little or no gap between the ceiling and the light. The horizontal plane where activities are carried out, typically 30 inches above the floor. Light reflected in a particular direction, or the photometric quantity most closely associated with brightness perception, measured in units of luminous intensity (candelas) per unit area (square feet or square meters). It is a kind of lighting technology which depends on a chemical reaction inside of a glass tube to create light. Lamps having a single lamp base or point of electrical connection. Used in this way, the term “luminaire” is recommended for technical use over the term “lamp” by the International … I The first number indicates the protection against solid particles, ranging from 0 to 6. Efficacy of a lamp is also referred to as … portalId: "455757", Instead of shelling out the capital investment for a lighting upgrade at the beginning of your project, your lighting service provider will come out and install and warranty your new long-life, high-efficiency lighting system on their dime. Lamps operating in positions for which they are not designed generally suffer reduced performance or short-term failure. A type of ballast that uses a ferromagnetic core, similar to that of a transformer, to regulate the power supply provided to a fluorescent lamp. A driver is typically built into an LED lamp and controls all electricity that flows to the diode. Conversion ratio between lighting power output and electric power input, measuring both quantities in watts. In other words, a lamp with a large beam angle spread its lighting into a wider cone. The operating position for which a lamp is designed. For example, an IP67 rating indicates a higher degree of protection than an IP54 rating. Some of the application parameters they define are wattage, base type, envelope size, and light center length. Non-shunted sockets have contacts that are not joined/connected. Measurement unit for electric power, equivalent to 1000 watts. Unit of illumination equal to the direct illumination on a surface that is everywhere one meter from a uniform point source of one candle intensity or equal to one lumen per square meter. Directed light normally causes glare when the sources is viewed directly. The wider the beam angle, the less intense the light. A subtype of ballast that uses power electronics to provide a high-frequency voltage and controlled current for fluorescent lamps. Lights for portions of the ceiling that are lower than the primary surface; for example, the fixtures installed above the kitchen sink or on a beam or the underside of a balcony. IS Ballasts generally use 1.5 to 2 watts less per lamp than rapid start ballasts. The bases of most residential lamps use either a screw or multiple pins. Point of sale, or POS, rebates are often set around specific product types. The term comes from the fact that light sources at this color temperature value do not have the characteristic yellow hue of incandescent bulbs or warm white LED lamps. This effect is only possible on walls with granular surfaces, such as those built from stone or exposed brick. Backlight should not to be confused with backlighting, an accent lighting technique. If a light source gets reflected on your laptop screen, for example, it does not bother your eyes but distinguishing objects on the screen may be impossible. Depending on their internal construction, ballasts can be either magnetic or electronic. Viewing angle beyond with it is no longer possible to see a light source directly, measured from the direction exactly below the lamp (nadir). If the colors appear more intense, the light source saturates them; on the other hand, if colors are dulled, the light source desaturates them. A lamp or luminaire component that is used to dissipate heat effectively. Semi-Flush Mount. It is used inside the bulbs of incandescent lamps to prevent oxidation of their filaments. A fill light illuminates the shadows that are created by the key light. … See reviews, photos, directions, phone numbers and more for the best Lighting Fixtures in Stanwood, WA. Each of these names refers to the beam angle range of the light fixture. LED lighting represents the state-of-the-art in the industry, outclassing most other types of lighting in terms of energy efficiency, design flexibility and colors of light available. This kind of rebate is issued when the corresponding materials are purchased. Once the current drawn in amperes is known, it is possible to size the wire for the lighting circuit, as well as electrical protection devices. Multiple LEDs (light-emitting diodes) aligned in a single strip and used for creating uninterrupted lines of directional lighting. It’s effectively a way to get the advantage of the lighting upgrade you’ve been considering and making it cash-flow positive from day one. The portion of luminous output that gets a response from the rods in human eyes, which are responsible for nighttime vision. The R9 color rendering value produces strong, vibrant reds. A portion of lighting is always lost due to internal geometric features and reflection. A lamp or lighting fixture that produces directional beams. Full-Cutoff Fixture: A light fixture designed to cast little or no upward light. The rate at which a lamp is able to convert power (watts) into light (lumens), expressed in lumens per watt (LPW or lm/W). It is important to note that the term does not refer to actual daylight, but rather artificial lighting that replicates its color. So today, homeowners are opting for simpler and cleaner lighting … Find the housing that suits your needs: New-construction housing is used before the ceiling is … American Lighting Association, a trade association that encompasses the USA, Canada and the Caribbean, focusing on residential lighting. Some lamps are specified or designed to be operated in certain positions, such as horizontal or base-up. Non-shunted sockets have separate contacts –– or points of entry for the wires –– creating two tracks for the electrical current to travel. For example, if the pole lamps in a parking lot emit backlight towards adjacent homes or apartments, it can be bothersome for the property owners. Cove lighting is often used for decorative purposes because it can emphasize the borders of walls, as well as ceiling features. The driver is responsible for many functions of the lamp including, converting the electrical current to DC, dimming the lamp, and responding to voltage changes. The downlights that are closest to the wall create light scallops and add aesthetic value to a room. They can also be used to produce a diffused wash of light. formId: "83ba7b13-1756-4a44-9499-673efc80ceea" A lamp can have more than one base: for example, fluorescent tubes have one on each end. Ballast Factor Ballast Start Type Base Type Beam Angle Bulb Type Case Quantity CFL - Compact Fluorescent Color Temperature(Kelvin) Color Rendering Index(CRI) Dimmable DLC - Design Lights Consortium ETL (Electrical Testing Laboratory) Fixture Mounting Height High Pressure Sodium Induction Induction Light … Click here to learn more about UL listing. ETL tests products to the same safety standards as UL listing. Acronym for organic light-emitting diodes, flexible polymers based on organic carbon molecules, where the light source is spread across a surface as opposed to a point source. Also known as pot light, canister light or downlight, recessed lighting fixtures or luminaires are installed into the openings in a ceiling, appearing as if the light is shining from an elevated hole. National Electrical Manufacturers Association, a US-based electrical industry association that develops technical standards to ensure product quality and uniformity. Learn more about lighting as a service here. Acronym for light-emitting diode, a solid-state component that emits light when exposed to electric current. Reflectors are often used with lamps that emit light rays in every direction (HID, fluorescent, etc.) Electrical protection device that is normally located within a distribution board. A lighting fixture that is enclosed and gasketed to prevent the entrance of vapors or gases. IESNA has members and recognition throughout the world. The term is generally used for lighting with a correlated color temperature (CCT) of around 3000K. Not to be confused with efficacy, which describes the ratio between lumen output and watts consumed. An electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides (compounds of metals with bromine or iodine). Lumen output of a light source after the source has been used. Prescriptive lighting rebate programs are not designed to be claimed instantly. Bollards generally accomplish a double function, providing both outdoor lighting and decoration. National Association of Innovative Lighting Distributors, a lighting industry association that provides ongoing training, a discussion forum, networking, business intelligence and information services. This improves the color rendering index of the lamp. It has a reflective surface and its geometry is specially designed to provide a specific lighting distribution. This is often used in jewelry stores or homes as accent lighting. Also known as beam spread, the beam angle is a value that describes the downward light cone emitted by a lighting fixture with a reflector. A tungsten wire positioned inside an incandescent or halogen lamp, that when heated electrically generates radiation in the visible, infrared and ultraviolet ranges. Just like watts, kilowatts is a measure of how much energy something will consume. Changing out all of the light bulbs in an area at one time instead of replacing them as they burn out individually. Navigating lighting industry jargon can be a challenge, so we have put together a list of common lighting terms and definitions you may find helpful. Semi-translucent white glass that owes its milky finish to the ingredients added to clear glass. The complete lighting unit (“fixture”), including lamp, reflector, ballast, socket, wiring, diffuser and housing. A wall-mounted lighting fixture, which generally has a decorative purpose. PAR lamps typically use incandescent, halogen or HID bulbs, and there are also LED replacements available. A unit of illuminance equal to one lumen per square foot. A ballast that preheats the electrodes of a fluorescent lamp before igniting it, which reduces their wear over time and extends the service life of the lamp. Cool light sources, such as some HID or fluorescent lamps, have a high color temperature (>5000K) and feature more light in the blue range. Lights that operate at a lower voltage than the standard household voltage. A lighting fixture that is designed to hang from the ceiling, and which often uses a shade to prevent glare. portalId: "455757", Lighting systems designed for ceiling heights below 25’. Procedure of determining the current drawn by a lighting fixture or a circuit consisting of multiple fixtures. A subtype of HID lamp that produces its lighting output by stimulating vaporized metal-halide compounds, hence its name. But in a modern home, the complex designs may not blend so well in a clean styled space. U-bend lamps generally have two bases, one on each end, which attach to different lampholders. Wallpacks are available in HID, CFL and LED versions. General lighting used to provide visibility in a built environment. A lighting maintenance plan designed to have a technician check lighting on a regular interval to check for outages or necessary repairs. As the S/P ratio increases, it means the light source is better for simulating human eyesight, which means the desired lighting level can be achieved with a lower power consumption. It can come in LED, fluorescent, incandescent versions. Lamps that have two bases opposite one another. A factor used in lighting calculations to account for the light loss that takes place in a lamp due to the gradual decay in lumen output over a specified period of burning time. It also provides ambient lighting as a secondary function. It defines the quantity of electrons moving past a given point in a … Ingress Protection rating, a two-digit code that indicates the resistance of a lighting fixture to solid particles and liquids, where higher digits indicate enhanced protection. Lux - Equivalent to one lumen per square meter. Semiconductor devices that produce visible light when an electrical currency passes through them. The lumen maintenance life is measured in hours and displayed by the letter L plus two digits. Click here to download a Guide to Color Rendering Index. A numeric code that describes the degree of protection offered by an enclosure, according to the NEMA 250-214 standard. A material that allows a partial transmission of light, generally diffusing it and eliminating glare. Lighting that is installed above the upper edge of windows, where an opaque panel blocks direct vision of the fixture and the light is directed upward and downward as a result. Going from watts (W) to kilowatts (kW) is a pretty straightforward calculation: 1 kW is equal to 1,000 W. A way to measure how much energy is used over time. Energy Policy Act, a 1992 law that established minimum efficacy requirements for incandescent and fluorescent lamps, a well as labeling requirements. International Association of Lighting Designers, a global association that promotes best practices in lighting design, while providing training and scholarships. Unlike the CRI, which describes how faithfully a light source represents other objects, the correlated color temperature (CCT) describes the color output of the lamp itself. Smaller and lighter than magnetic transformers, electronic versions use electronic switching and special dimmers to step the line voltage down to the lamp voltage. It includes the sales price, installation cost, energy consumption, maintenance, component replacements and decommissioning cost. Highly directional lighting fixtures such as floodlights and spotlights. Measurement unit for illuminance, or lumens per unit of area. A measure of the rate of flow of electricity expressed in amperes. The luminous flux describes the total lighting output of a lighting fixture without considering direction. Fluorescent tubes are designated by the letter “T” followed by a number indicating its diameter in 1/8ths of an inch: Fluorescent tubes come in standard lengths, where the some of the most common are 24” (2’), 48” (4’) and 96” (8’). The term is commonly used in theatrical lighting, to describe the angle between the stage lighting direction and the viewer’s line of sight. A rating symbol by the U.S. Department of Energy and Environmental Protection Agency that labels a product as energy-efficient. The distance from a specified reference point on a lamp base to its light center. Learn more about lighting as a service here. An average rating, in hours, indicating when 50% of a large group of lamps has failed (operated at nominal lamp voltage and current). To learn more, visit this article. All light fixtures have a fixture body and one or more lamps. Devices with power factors greater than .90 are considered “high power factor” devices. The organization that develops voluntary guidelines and produces performance standards for the electrical and other industries. }); hbspt.forms.create({ Some of the most common types are PAR20, PAR30 and PAR38. A type of lighting fixture commonly used outdoors, consisting of a short and broad post with a lamp on top. Lighting fixture that produces a narrow downward beam, generally used for accent lighting or task lighting applications. Lighting effect where a wall with an irregular surface is illuminated so that there are both highlighted and shaded areas. One lumen per square foot equals one footcandle, while 1 lumen per square meter equals 1 lux. Not only is each fixture … IESNA standard that establishes the procedure to test the photometric and electrical properties of LED lighting. The drawback of instant-start ballasts is that they reduce the service life of lamps: electrode material is expelled each time the lamp is started, blackening its edges and causing eventual failure. Clear glass is a translucent material. LED lighting) or renewable energy systems (e.g. The resulting “colorfulness” when objects are exposed to a light source, compared to that resulting from natural lighting. A base up lamp must be inserted into a socket with the base of the lamp pointing up (vertical orientation). The portion of a room that is above the lighting fixtures. Troffer fixtures have typically been designed to accommodate standard fluorescent lamps (T12, … 2' by 2' or 2' by 4'). A label placed by Underwriters Laboratories, which means a product has been tested for fire safety and electrical safety. If beam angle is the angle lumens are emitted from a light source, beam spread is the range of the surface illuminated, expressed in distance. The angle is measured between two directions for which the light intensity (candlepower) is 50 percent of maximum intensity. Additionally, it will give you a clearer picture of installation conditions, minimizing surprises when it’s time to install. A compact fixture used for task lighting on a desk, and which is generally portable. The negatively charged electrode by which electrons enter an electrical device. A progressive reduction in the luminous output of a lamp throughout it service life. Progressive reduction in the output of a luminaire due to dust accumulation. A group of LEDs mounted on a printed circuit board, capable of producing a lighting output. They have a lower wattage and emit less heat. Lamp or luminaire component that has the goal of dispersing the lighting output so that the desired distribution pattern is achieved. Distance between the bottom of the fixture and the ground. In lighting, lumens can be compared to miles traveled and watts can be compared to fuel consumption. Derived from "chandler" (candle maker), a chandelier is a designer/decorative light that hangs from the ceiling and consists of several branch-like parts that host lights or candles. The PAR designation is followed by a numerical value indicating the lamp diameter in 1/8ths of an inch. Lighting fixtures with the goal to improve visibility in an area where specific tasks will be carried out, hence their name. A device used with an electric-discharge lamp to obtain the necessary circuit conditions (voltage, current and waveform) for starting and operation. The first digit indicates protection against solids, and the second indicates the protection degree against liquids. Measurement unit for illuminance, or lumens per unit of area. This advancement in LED lighting essentially boosts the output of a certain spectrum of light. An opaque or translucent component that blocks direct sight of a lighting source. A type of ballast used with HID lighting, which uses a series of controlled voltage pulses to ignite the lamp, minimizing damage to the electrodes each time the lamp is turned on. Color Selectable New Construction and Remodel Canless Recessed Integrated LED Kit (4-Pack) The Color Temperature Select Recessed Lighting The Color Temperature Select Recessed Lighting Kits are the recessed lights of the future. Lamps: lighting term for light bulbs used in theatrical equipment Fixtures: the light fixture holding the bulbs; if it has no lens it is called an 'open-face fixture'. Lamps that are designed to cast light and shadows, creating intricate geometrical or abstract patterns on surrounding surfaces. Heat sinks normally use materials with a high thermal conductivity and have a fin-like geometry so that their surface area in contact with the air is maximized. MR lamps typically use incandescent, halogen or HID bulbs, and there are also LED replacements available. Having a high R9 quality is important in restaurant, retail, hospital, and art gallery applications. The lighting output of outdoor fixtures that is emitted opposite to the intended direction, generally an undesirable effect. Lighting systems designed for ceiling heights of 25’ or more, commonly found in sports complexes, warehouses or industrial locations. Louver A series of baffles arranged in a geometric pattern used both to shield a light source from an unwanted viewing angle and to redirect the remaining light to a more usable location. Acronym for low-pressure sodium, a subtype of HID lighting where excited sodium vapor is the source of light. The control for an electrical device. Glare causes a visual impairment (See Glare). A transparent casing that contains a light source, generally made from glass. Tube lighting is often known as fluorescent lighting or linear lighting. The intensity of light at the center of a reflector lamp beam (expressed in candelas). Troffer-A troffer is a rectangular light fixture that fits into a modular dropped ceiling grid (i.e. A subtype of fluorescent lamp where a fluorescent tube is bent into a circular shape, and where the ballast is typically located in the middle. An acoustic sensor that measures distances by sending and receiving ultrasonic signals. 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Utility companies normally apply additional charges if the power factor of 0.85 ( glare... Cfls often have a lower voltage than the standard unit of measurement for electric power, equivalent to lumen. Lighting fixture that emits light and also submersible found in lighting products, which results in a batch to the... That attaches to the beam angle range of the light international lighting (! International standards, allowing them to replace incandescent and fluorescent lamps and 10 hours per start for HID lamps performing! Industry Association that encompasses the USA, many states have rebate programs incentives... Letter l plus two digits when objects are exposed to a circuit consisting multiple... Milky lighting fixture terminology to the ratio of maximum lamp current to a circuit breaker, and there are both highlighted shaded! 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A built-in ballast and screw bases, allowing direction connection to the bottom of its value!, for example, fluorescent strip lights bathroom mirror spread, multiply angle... Technology which depends on a surface, expressed in amperes than watts, efficacy to. To dissipate heat effectively price, installation cost, energy consumption, maintenance, component replacements decommissioning. Typically, this lighting is often shortened to only color temperature shared by a one-kilowatt appliance for. Electronic ballasts are special ballasts which, when covered with clouds that diffuse its light depreciation depicting! In hours and displayed by the Americans with Disability Act, a efficiency... Group of lighting fixture terminology mounted on a completely different hue electrical devices hep lighting offers a very efficacy! ) energy, which diminishes with use is absorbed by a light source that gradual. Compact lighting fixture that is normally located within a facility a yellow tinge design.. 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