Product Name: 200lm/W High Power LED Indoor Lighting Fixture IP65 UFO LED Highbay Light Model NO.: PL-UFO-011S-200W LED Chips: Lumileds 3030SMD Beam Angle: 60/90/120 Certification: CCC, CE, CQC, C-tick, EMC, Energy Star, ETL, FCC, FDA, GOST, GS, LVD, PSE, REACH, RoHS, SAA, SASO, UL, VDE IP Rating: IP65 Lifespan: ?50000H Usage: Warehouse, Factory Power: 200W Lamp Body Material: Die-Cast Aluminum+Toughed Glass+Lens Color Temperature: 3000-5700K Trademark: Peony Transport Package: 40*40*20cm Specification: 345*181.40mm Origin: China Product Description 200W High Power LED Indoor Lighting Fixture IP65 UFO LED Highbay LightFAQQ:Whether the LEDlightsreallyhave50,000hourslifespan?A:50,000orlongerlifespanisonlytheoryfromlabtest.Butduetoworkingenvironmentaredifferentfrominlab,actuallifespanisonly <=30,000hours.Meanwhileitcanalsobe50,000hourslifespanifitadoptverygoodmaterial.Q:Forsamepower,whydifferentsupplierswithdifferentbrightness?A:Differentchips,orsamechipbutdifferentbrightnessversion.Thebrightnesswillbedifferent.Butforsamechipandsamebrightnessversion,thebrightnesswillbeslightdifference.ButpleasemakeclearthebrightnessdifferencebetweenLEDsandlampfixture.Q:Whatiscolourtemperature?A:Kelvinisawaytomeasure"temperature",thelightfromLEDlightsemitacertaincolor,whichwehavecatagorizedinCTT(kelvin).Forexample,awarmer(lowercolortemperature)lightisoftenusedinpublicareastopromoterelaxation,whileacooler(highercolortemperature)lightisusedtoenhanceconcentrationinoffices.Q:WhatisCRI?A:CRIisafigurewhichfeedbacktherealobjectscolors.HigherCRIwithhighercost.Q:WhatisPFandefficiency?A:PFandefficiencyistofeedbackthedriverelectricalperformance.HigherPFandefficiencywithhighercosteotherquestions,pleasefeelfreetocontactus,youwillgetreplyatthefirsttime