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ENERGY STAR Program Requirements for Lamps – Flicker Recommended Practice (Rev. Dec‐2015) Page 1 of 5 ENERGYSTAR®ProgramRequirementsProductSpecificationforLamps:LightSourceFlickerRecommendedPracticeRev.December20151OVERVIEWThisdocumentprovidestherecommendedpracticeforevaluatingflickerwithandwithoutadimmer.ThistestcanbeperformedconcurrentlywiththeENERGYSTARLightOutputonaDimmertesting.2APPLICABILITYThisrecommendedpracticeappliestoallCFLandsolid-statelampscoveredinthescopeoftheLampsspecificationthataremarketedasdimmable.3DEFINITIONSUnlessotherwisespecified,alltermsusedinthisdocumentareconsistentwiththedefinitionsintheENERGYSTAREligibilityCriteriaforLamps.BaselineLightOutput:Thebaselinelightoutput(BLO)referstothestabilizedlightoutputoftheUUToperatingwithoutadimmerinthecircuit.MaximumControlPosition:Thesettingonthedimmerorcontroldeviceintendedtoachievethemaximumlightoutputduringoperation.MaximumLightOutput:Themaximumlightoutput(MaxLO)referstothelightoutputofthelampwhenoperatingwithadimmerinthecircuitwiththecontrolatthemaximumposition.MinimumDimmingLevelClaimed:Theminimumlightoutputlevelofalampwhenoperatedwithadimmerinthecircuit,asdeclaredbythelampmanufacturer.Typicallyexpressedasapercentage.MinimumLightOutput:Theminimumlightoutput(MinLO)referstotheminimumlightoutputwhenthelampisoperatingwithadimmerinthecircuit.UnitUnderTest:Theunitundertest(UUT)refersthethespecificlampsamplebeingtested.4METHODSOFMEASUREMENTANDREFERENCEDOCUMENTS4.1IESTestMethodsandReferenceDocumentsA)IESLM-66-14:2014.IESApprovedMethodforElectricalandPhotometricMeasurementsofSingle-EndedCompactFluorescentLamps,IlluminatingEngineeringSociety,NewYork.B)IESLM-79-08:2008.IESApprovedMethodforElectricalandPhotometricMeasurementsofSolid-StateLightingProducts,IlluminatingEngineeringSociety,NewYork.C)IESLM-54-12:2012.IESGuidetoLampSeasoning,IlluminatingEngineeringSociety,NewYork.D)IESRP-16-10:2010.IESNomenclatureandDefinitionsforIlluminatingEngineering,IlluminatingEngineeringSociety,NewYork.ENERGY STAR Program Requirements for Lamps – Flicker Recommended Practice (Rev. Dec‐2015) Page 2 of 5 5TESTSETUP5.1GeneralA)TestSetupandInstrumentation:Thetestcanbeperformedusinganabsolutephotometrymethodorarelativephotometrymethod,andtheequipmentrequireddependsonthemethodused.1)Equipmentrequiredforabsolutephotometrymeasurement:a)PowersupplyandmeterthatcomplieswithIESLM-79-08orIESLM-66-14asapplicable.See5.1.Cand5.1.E.b)Multichanneloscilloscopewithdatastoragecapabilityorsimilarequipmentforcomparingoutputreadingsfromaphotodetectorc)Appropriateattenuatorprobe(s),ifapplicabled)Photodetectore)Integratingsphere2)Equipmentrequiredforrelativephotometrymeasurement:a)PowersupplyandmeterthatcomplieswithIESLM-79-08orIESLM-66-14asapplicable.See5.1.Cand5.1.E.b)Multichanneloscilloscopewithdatastoragecapabilityorsimilarequipmentforcomparingoutputreadingsfromaphotodetectorc)Appropriateattenuatorprobe(s),ifapplicabled)Photodetectorcapableofmeasuringrelativelightoutpute)MethodofensuringthelightmeasuredcomesonlyfromtheUUT.B)LampSeasoningandPreburning:Priortothefirstreadings,compactfluorescentlamps(CFLs)shallbeseasonedfor100hoursinaccordancewithIESLM-54-12.CFLsshallbepreburnedinaccordancewithIESLM-66-14.LEDlampsshallnotbeseasoned.C)InputPowerforMeasurements:ThepowerrequirementsshallbeperIESLM-66-14orLM-79-08asapplicable.Note:Whenselectingapowersupplyforusewithintegratedlamps,itisnecessarytoapplyanappropriatepowerfactorwhenspecifyingtheVolt-Ampratingofthepowersupply.D)AmbientTemperature:Lamptestingshalltakeplaceinanambienttemperatureof25°C±5°C.Draftsshallbeminimized.E)PowerMeter:PowermetersshallbecapableofmeasuringtotheappropriaterequirementsofIESLM-66-14and/orIESLM-79-08asapplicable.F)EnvironmentalConditions:Thetestenvironmentshallbecleanandfreefromlargeamountsofdustandmoisture.G)SampleSelection:Samplesshallberepresentativeofthemanufacturer’stypicalproduct.Thesamplesshallbecleanandthoroughlyinspectedbeforetesting.Anyflawsorinconsistenciesinthelampsamplesshallbenoted.Thesample(s)usedforflickertestingshallbethesamesample(s)usedfortheENERGYSTARLightOutputonaDimmertesting,ifapplicable,andcanbethesamesample(s)usedforothertesting.ENERGY STAR Program Requirements for Lamps – Flicker Recommended Practice (Rev. Dec‐2015) Page 3 of 5 6TESTCONDUCT6.1GuidanceforImplementationFlickerTestProcedureH)PhotometricMeasurements:1)ThephotodetectorusedforphotometricmeasurementsshallbeasilicondetectorcorrectedtocloselyfittheCommissionInternationaledel’Eclairage(CIE)spectralluminousefficiencycurve(Vߣ).a)Ensurethatthemeasurementequipmentreceivestheappropriatevoltagerangefromthephotodetector,usinganamplifierifnecessary.2)Theoscilloscopemeasurementperiodneedstobe≥100ms.3)Theoscilloscopesamplingrateusedneedstobe≥2kHz.I)LampTransferforCFLs:careshallbeexercisedtomaintainlamporientationandavoidshakingorbumpingthelampduringthetransferfromseasoningarea.J)LowVoltageLamps:1)Lampsdesignedforoperationonlowvoltagetransformersshallbeoperatedonacompatibletransformerspecifiedorsuppliedbythelampmanufacturer.2)Electricalmeasurement