- alternative text
means text provided as an alternative to a graphic allowing information to be presented in non- graphical form where display devices cannot render the graphic or as an aid to accessibility such as input to voice synthesis applications;
- anti-glare shield
means a mechanical or optical reflective or non-reflective impervious baffle designed to block direct visible radiation emitted from the light emitter in a directional light source, in order to avoid temporary partial blindness (disability glare) if viewed directly by an observer.
- battery-operated
means a product that operates only on direct current (DC) supplied from a source contained in the same product, without being connected directly or indirectly to the mains electricity supply;
- chromaticity
means the property of a colour stimulus defined by its chromaticity coordinates (x and y);
- colour consistency
means the maximum deviation of the initial (after a short period of time), spatially averaged chromaticity coordinates (x and y) of a single light source from the chromaticity centre point (cx and cy) declared by the manufacturer or the importer, expressed as the size (in steps) of the MacAdam ellipse formed around the chromaticity centre point (cx and cy);
- colour rendering index
(CRI) means a metric quantifying the effect of an illuminant on the colour appearance of objects by conscious or subconscious comparison with their colour appearance under the reference illuminant and is the average Ra of the colour rendering for the first 8 test colours (R1-R8) defined in standards;
- colour-tuneable light source
(CTLS) means a light source that can be set to emit light with a large variety of colours outside the range defined in Article 2 but can also be set to emit white light inside the range defined in Article 2 for which the light source is within the scope of this Regulation.
- compact fluorescent light source
(CFL) means a single-capped fluorescent light source with a bent-tube construction designed to fit in small spaces.
- connected light source
(CLS) means a light source including data-connection parts that are physically or functionally inseparable from the light emitting parts to maintain the ‘reference control settings’.
- containing product
means a product containing one or more light sources, or separate control gears, or both, including, but not limited to, luminaires that can be taken apart to allow separate verification of the contained light source(s), household appliances containing light source(s), furniture (shelves, mirrors, display cabinets) containing light source(s);
- control gear
means one or more devices that may or may not be physically integrated in a light source, intended to prepare the mains for the electric format required by one or more specific light sources within boundary conditions set by electric safety and electromagnetic compatibility.
- control mode
means the condition of lighting control parts where they are connected to the light source and performing their functions in such a way that a control signal can be internally generated or a remotely initiated trigger can be received, by wire or wireless, and processed to lead to a change in the light emission of the light source;
- control signal
means an analogue or digital signal transmitted to the light source wirelessly or wired either via voltage modulation in separate control cables or via a modulated signal in the supply voltage.
- correlated colour temperature
(CCT [K]) means the temperature of a Planckian (black body) radiator whose perceived colour most closely resembles that of a given stimulus at the same brightness and under specified viewing conditions;
- data-connection parts
means parts that perform any one of the following functions:
- declared values
means the values provided by the supplier for the stated, calculated or measured technical parameters, pursuant to Article 3(3) of Regulation (EU) 2017/1369 and in accordance with Article 3(1)(d) and Annex VI of this Regulation, for the verification of compliance by the Member State authorities;
- determined value
means the arithmetical mean over the tested units of the measured values for a given parameter or the arithmetical mean of parameter values calculated from other measured values.
- directional light source
(DLS) means a light source having at least 80 % of total luminous flux within a solid angle of π sr (corresponding to a cone with angle of 120°);
- displacement factor (cos φ1)
means the cosine of the phase angle φ1 between the fundamental harmonic of the mains supply voltage and the fundamental harmonic of the mains current.
- display mechanism
means any screen, including tactile screen, or other visual technology used for displaying internet content to users;
- excitation purity
means a percentage computed for a CTLS set to emit light of a certain colour, using a procedure further defined in standards, by drawing a straight line on an (x and y) colour space graph from a point with colour coordinates x = 0,333 and y = 0,333 (achromatic stimulus;
- flicker
means the perception of visual unsteadiness induced by a light stimulus, the luminance or spectral distribution of which fluctuates with time, for a static observer in a static environment.
- fluorescent light source
(FL) means the phenomenon or a light source using an electric gas discharge of the low-pressure mercury type in which most of the light is emitted by one or more layers of phosphors excited by the ultraviolet radiation from the discharge.
- full-load
means the condition of a light source, within the declared operating conditions, in which it emits the maximum (undimmed) luminous flux;
- gas discharge
means a phenomenon where light is produced, directly or indirectly, by an electric discharge through a gas, plasma, metal vapour or mixture of gases and vapours;
- halogen light source
means an incandescent light source with a threadlike conductor made from tungsten surrounded by gas containing halogens or halogen compounds;
- high intensity discharge
(HID) means an electric gas discharge in which the light- producing arc is stabilised by wall temperature and the arc chamber has a bulb wall loading in excess of 3 watts per square centimetre.
- high-luminance light source
(HLLS) means a LED light source with an average luminance greater than 30 cd/mm2 in the direction of peak intensity;
- high-pressure mercury light source
means a high intensity discharge light source in which the major portion of light is produced, directly or indirectly, by radiation from predominantly vaporised mercury operating at a partial pressure in excess of 100 kilopascals;
- high-pressure sodium light source
(HPS) means a high intensity discharge light source in which the light is produced mainly by radiation from sodium vapour operating at a partial pressure of the order of 10 kilopascals.
- incandescence
means the phenomenon where light is produced from heat, in light sources typically produced through a threadlike conductor (‘filament’) which is heated by the passage of an electric current;
- inorganic light emitting diode
(LED) means a technology in which light is produced from a solid state device embodying a p-n junction of inorganic material.
- light
means electromagnetic radiation with a wavelength between 380 nm and 780 nm;
- light source
means an electrically operated product intended to emit, or, in the case of a non-incandescent light source, intended to be possibly tuned to emit, light, or both, with all of the following optical characteristics: using incandescence, fluorescence, high-intensity discharge, inorganic light emitting diodes (LED) or organic light emitting diodes (OLED), or their combinations as lighting technology, and that can be verified as a light source according to the procedure of Annex IX.
- lighting control parts
means parts that are integrated in a light source, or physically separated but marketed together with a light source as a single product, that are not strictly necessary for the light source to emit light at full-load, but that enable manual — or automatic-, direct- or remote-, control of luminous intensity, chromaticity, correlated colour temperature, light spectrum and/or beam angle.
- lumen maintenance factor
(XLMF) means the ratio of the luminous flux emitted by a light source at a given time in its life to the initial luminous flux;
- luminous intensity
(candela or cd) means the quotient of the luminous flux leaving the source and propagated in the element of solid angle containing a given direction, by the element of solid angle;
- mains light source
(MLS) means a light source that can be operated directly on the mains electricity supply.
- mains voltage
(MV) means the electricity supply of 230 (± 10 %) volt of alternating current at 50 Hz;
- metal halide light source
(MH) means a high intensity discharge light source in which the light is produced by radiation from a mixture of metallic vapour, metal halides and the products of the dissociation of metal halides.
- nested display
means visual interface where an image or data set is accessed by a mouse click, mouse roll-over or tactile screen expansion of another image or data set;
- network
means a communication infrastructure with a topology of links, an architecture, including the physical components, organisational principles, communication procedures and formats (protocols);
- networked standby mode
means the condition of a CLS where it is connected to the power supply but the light source is intentionally not emitting light and is awaiting a remotely initiated trigger to return to a state with light emission.
- non-directional light source
(NDLS) means a light source that is not a directional light source;
- non-lighting parts
means parts that are integrated in a light source, or physically separated but marketed together with a light source as a single product, that are not necessary for the light source to emit light at full-load, and that are not ‘lighting control parts’.
- non-mains light source
(NMLS) means a light source that requires a separate control gear to operate on the mains;
- organic light emitting diode
(OLED) means a technology in which light is produced from a solid state device embodying a p-n junction of organic material.
- PoE switch
means equipment for power-supply and data-handling that is installed between the mains and office equipment and/or light sources for the purpose of data transfer and power supply;
- point of sale
means a physical location where the product is displayed or offered for sale, hire or hire-purchase to the customer.
- R9
means the colour rendering index for a red coloured object as defined in standards;
- reference control settings
(RCS) means a control setting or a combination of control settings that is used to verify compliance of a light source with this Regulation.
- remotely initiated trigger
means a signal that comes from outside the light source via a network;
- second envelope
means a second outer envelope on a HID light source that is not required for the production of light, such as an external sleeve for preventing mercury and glass release into the environment in case of lamp breakage.
- separate control gear
means a control gear that is not physically integrated with a light source and is placed on the market as a separate product or as part of a containing product;
- specifically tested and approved
means that the light source:
- standby mode
means the condition of a light source, where it is connected to the power supply but the light source is intentionally not emitting light, and the light source is awaiting a control signal to return to a state with light emission.
- stroboscopic effect
means a change in motion perception induced by a light stimulus the luminance or spectral distribution of which fluctuates with time, for a static observer in a non-static environment.
- survival factor
(SF) means the defined fraction of the total number of light sources that continue to operate at a given time under defined conditions and switching frequency;
- T12
means a tubular light source with diameter of approximately 7, 16, 26, 29 and 38 mm respectively, as defined in standards.
- tactile screen
means a screen responding to touch, such as that of a tablet computer, slate computer or a smartphone;
- useful luminous flux
(Φuse) means the part of the luminous flux of a light source that is considered when determining its energy efficiency: