Led Photometric Diagrams Full Range QuickTouch
Delivering 49 lumens per watt, full range QuickTouch dimming, and a field-replaceable LED module, the. The room cavity ratio is the ratio of walls to horizontal surfaces or floors to the work area.in the 2010 IES Progress Report. The coefficient utilization table in photometry considers the percentage of light from the lamps that reach the work surface in a given space. The photometric light diagrams created from these findings tell you immediately if most of the flux (the lumens, the flow of light) goes upwards downwards or sideways.
System effect is the total effect used per luminaire, adding the LED module and LED driver together. The unit for system effect is Watt ( W) Light sourceThe Altair Curve LED is an exciting range of luminaires utilising the latest high efficiency LED technology. Photometric tests provide the measurement of quantity, colour, quality and spatial distribution of light emitted by lamps, and. Asselum has a goniophotometer of type XXX and one of type xx for the realization of tests of lamps, modules and LED lights according to 13032-4.
Both 3000K and 4000K are white light, but 4000K is cooler than 3000K. Most common for interior lighting applications is 3000K and 4000K. Light efficiencyLight efficiency is a measure of the performance of the luminaire.Formula: Luminous flux lm / System effect W = Efficiency lm/ WColour temperature is stated on lighting products. The unit for luminous flux is lumen ( lm).
For LED luminaires it is stated as 100%. Light output ratioLight Output Ratio ( LOR) is the percentage of light emitted from the light source that makes it out of the luminaire. The way of solving this is to sort (binning) the diodes.MacAdams 1-3 are typically for applications with high demands for equal colour quality.MacAdams 3-5 are typically for general interior environments.MacAdams 5-7 are mainly for outdoor environments and products with less demand.The unit for MacAdams is SDCM (Standard Deviation of Color Matching). In order to have a homogenous installation when containing many luminaires the LED diodes must not differ too much. LED diodes have a natural spread in colour temperature even though they are manufactured according to the same specification. Generally, a CRI of Ra 70 and above will be required for most interior lighting applications.The unit for Colour Rendering Index is Ra.MacAdams is a measure that indicates the level of the sorting (binning).
Class IIA Class II or double insulated electrical appliance is one which has been designed in such a way that it does not require a safety connection to electrical earth (ground).The basic requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an electric shock and that this is achieved without relying on an earthed metal casing. Class IElectrical installations where the chassis is connected to earth with a separate terminal. The table below describes the respective appliance class.
CE marking, which is compulsory, means that the product fulfills the requirement of the CE directive. CE approval for lighting luminaireFor a luminaire to be marketed in the EU / EEA area it must be provided with the CE mark. Class IIIClass III luminaire is a luminaire in which protection against electric shock relies on supply at safety extra low voltage (SELV) and in which voltage higher than those of SELV are not generated.
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