Intheprocessofproduction,wealwaysencounterthephenomenonthatone,oneorseveralbeadscan'tbelightedwhenwetestsomebeadsafterstickingtheboard.Inviewofthisphenomenon,thispapermakesasummary:     Deadlampinweldingprocess     1.Commonweldingmethodscanbedividedintoelectricsoldering,heatingplatformweldingandreflowwelding.     A,solderingironweldingisthemostcommon,suchassamplemaking,maintenance,becausemostoftheexistingmanufacturersinordertosavecosts,thepurchaseofsolderingironismostlyslightlyunqualifiedproducts,mostlygroundedbadly,thereisleakage.Intheprocessofwelding,thisisequivalenttotheleakageofsolderingirontip-weldedLED-humanbody-earthformaloop.Thatistosay,itistensoftimes-hundredsoftimesthevoltagethatthebulbbears,whichisaddedtothetopoftheLEDbulb,andburnsitoutinstantaneously.Note:Thesituationofelectrostatictapeconnectionwillbemoreserious,becausewhenthebodyisconnectedwiththeelectrostatictape,theresistancetoformacircuittothegroundwillbesmaller,andthecurrentfromthebodytothelampbeadswillbelarger.Thisisalsotheproblemthatmanypeoplesaythattherearestillsomanylampbeadsdamagedwithelectrostatictape.     B.Deadlampcausedbyweldingofheatingplatform.Becauseofthecontinuoussamplelistoflampsandlanterns,mostenterprisesinordertomeettheneedsofsmallbatchesandsamplelist.Becauseoftheadvantagesoflowcostofequipment,simplestructureandoperation,heatingplatformhasbecomethebestproductiontool.However,duetotheuseenvironment(e.g.localtemperaturestoragewithfans).Intheunsteadyproblem)andthecontrolofweldingoperator'sproficiencyandweldingspeedhavebecomethemajorproblemofdeadlight.Inaddition,thereisthegroundingofheatingplatformequipment.     C.Reflowweldingisgenerallythemostreliablemodeofproduction,suitableformassproductionandprocessing.Ifimproperoperation,itwillcausemoreseriousdeadlightconsequences,suchasunreasonabletemperatureadjustment,poormachinegroundingandsoon.     2.Improperstoragecausesdeadlights:     Thiskindofproblemisthemostcommon.Becauseofthelackofattentiontomoisture-proofafterunpacking,thesealingglueoflampbeadsismostlymadeofsilicagel,whichhascertainwaterabsorptioncharacteristics.Afterdamplampbeadsstickingboard,silicagelwillexpandandshrinkafterhightemperatureweldingprocess.Thedeformationofgoldwire,chipandbracketwillcausethegoldwiretomoveandbreak.ItissuggestedthattheLEDshouldbestoredinadryandventilatedenvironmentwithastoragetemperatureof-40-+100Candarelativehumidityoflessthan85%.TheLEDshouldbeusedwithinthreemonthsofitsoriginalpackagingconditiontoavoidtherustofthebracket.WhenthepackagingbagoftheLEDisopened,itshouldbeusedassoonaspossibleandthestoragetemperatureshouldbekeptatthistime.Therelativehumidityisbelow60%at5-30C.     3.Chemicalcleaning:     DonotuseunknownchemicalliquidtocleantheLED,becauseitmaydamagethesurfaceoftheLEDcolloidandevencausecolloidcracks.Ifnecessary,cleantheLEDwithalcoholcottonswabundernormaltemperatureandventilationenvironment.Thebesttimeiscontrolledinoneminuteofwind.     4.Deformationcausesdeadlight:     Becausepartofthelampboardisdeformed,theoperatorwillgotoshaping.Becausetheplateisdeformed,theabovelampbeadsarealsodeformedtogether,breakingthegoldwireandcausingthelampnottoturnon.Itissuggestedthattheplatewiththistypeshouldbeshapingbeforeproduction.Thelongeronehasbeenassembledandmovedinproductionandmayalsocausedeformationandbreakageofgoldwires.Thereisalsostacking,theproductionprocessforconvenience,thelampboardwillbestackedatwill,becauseofgravity,thelowerlampbeadswillbedeformedbyforce,damagethegoldwire.     5.Heatdissipationstructure,powersupplyandlampboarddonotmatch:     Duetotheunreasonabledesignorselectionofpowersupply,thepowersupplyexceedsthemaximumlimitthatLEDcanwithstand(supercurrent,instantaneousimpact);irrationalheatdissipationstructureoflampswillcausedeadlightandprematurelightfailure.     6.PlantGrounding:     Itisnecessarytocheckwhetherthefactory'sgroundingwireisgoodornot.     7.Electrostatic:     StaticelectricitycancausethefailureofLEDfunction.ItissuggestedtopreventESDfromdamagingtheLED.     A.Operatorsmustwearanti-statichandringsandgloveswhentestingandassemblingLED.     B.Weldingequipmentandtestingequipment,workingtable,storagerack,etc.mustbewellgrounded.     C.UseionblowertoeliminatestaticelectricitycausedbyfrictionduringstorageandassemblyofLED.     D.Anti-staticcartridgeisusedforLEDcartridgeandelectrostaticbagisusedforpackaging.     E.Don'tbefluky,justtouchtheLED.     TheabnormalphenomenaofLEDdamagedbyESDareasfollows:     A.Reverseleakage,lightwillcauseadecreaseinbrightness,seriouslightsdonotturnon.     B.Theforwardvoltagedecreases.LEDcannotemitlightwhendrivenbylowcurrent.     24-hourhotline:15999793358(Weixinsamenumber)QQ:1780018226     Tel:0769-87285383-804     Fax:0769-87285383     Mailbox:ycw@taimingled.com     Address:No.9TengdaRoad,TengdaIndustrialPark,ZhangmuTown,DongguanCity,GuangdongProvince

CharacteristicsofLEDplantlamp:     1.Theeffectsofdifferentwavelengthsoflightonplantphotosynthesisaredifferent.Thelightneededforplantphotosynthesisisabout400-700nm.400-500nm(blue)lightand610-720nm(red)lightcontributedmosttophotosynthesis.     2.Blue(470nm)andred(630nm)LEDcanprovidejustthelightneededbyplants,sotheidealchoiceistousethecombinationofthesetwocolors.Invisualeffect,thecombinationofredandblueplantlightsshowpink.     3.Bluelightcanhelpplantphotosynthesistopromotegreenleafgrowth,proteinsynthesis,fruitformation;Redlightcanpromoteplantrhizomegrowth,contributetofloweringandfruitingandprolongfloweringperiod,playaroleinincreasingyield.     4.TheratioofredandblueLEDofLEDplantlampisgenerallybetween4:1and9:1,usually6-9:1.     5.Whenplantlampisusedtosupplylighttoplants,theheightofleavesisabout0.5-1meters.Continuousirradiationfor12-16hoursperdaycancompletelyreplacesunlight.     6.Theeffectisremarkable.Thegrowthrateisnearlythreetimesfasterthanthatofnaturalplants.     7.Solvetheproblemoflackofsunshineinwinteringreenhouse,promotechlorophyll,anthocyaninandcaroteneneededinplantphotosynthesis,sothatvegetablesandfruitscanbeharvested20%earlier,increasetheyieldby3to50%,increasethesweetnessofvegetablesandfruits,andreducepestsanddiseases.     8.LEDlightsourceisalsocalledsemiconductorlightsource.Thiskindoflightsourcehasnarrowwavelengthandcanemitlightofspecificwavelength,soitcancontrolthecoloroflight.Usingittoirradiateplantsalonecanimproveplantvarieties.     9.ThepowerofLEDplantgrowthlampislow,butitsefficiencyisveryhigh.Becauseotherlightsemitfullspectrum,thatistosay,sevencolors,whileplantsonlyneedredandbluelight,somostofthelightenergyoftraditionallampiswasted,sotheefficiencyisverylow.TheLEDplantgrowthlampcanemitthespecificredandbluelightneededbyplants,soitisveryefficient.ThisiswhythepowerofseveralwattsofLEDplantgrowthlampisbetterthanthatoftensorevenhundredsofwatts.     Anotherreasonisthelackofbluelightinthetraditionalsodiumlampspectrum,andredlightinthemercurylampandenergy-savinglampspectrum,sothetraditionallamplightcompensationeffectismuchworsethantheLEDlamp,andcomparedwiththetraditionallamptosavemorethan90%oftheelectricity,theoperationcostisgreatlyreduced.     AdvantagesofLEDPlantLamp:     1.Standardpowersocketconnectorsfordrivesorcoolingfansarenotrequired.     2.Theenvironmentofredandbluelightwavelengthisneededforplantgrowth.     3.Comparedwithothercommonlightingdevices,theLEDplantlamphasmildlightlineandwillnotburntheseedlings.     4.Comparedwithotherplantlightinglamps,itcansave10%~20%oftheelectricitycost.     5.Bluelightcanpromoteplantgrowth,whileredlightcanmakeplantsblossomandbearfruit.     24-hourhotline:15999793358(Weixinsamenumber)QQ:1780018226     Tel:0769-87285383-804     Fax:0769-87285383     Mailbox:ycw@taimingled.com     Address:No.9TengdaRoad,TengdaIndustrialPark,ZhangmuTown,DongguanCity,GuangdongProvince

In2018,theUnitedStates,Argentina,Australia,Austria,Chileandother35countrieshavelegalizedmedicalcannabis,whiletheUnitedKingdom,France,Belgium,NewZealandandotherninecountrieshavelegalizedsomemedicalcannabisdrugs.TheUnitedNationsCommissiononNarcoticDrugswillalsodiscusspureCBDandCBDpreparationsthatwillnotexceed0.2%THCandwillnotbeincludedintheinternationaldrugcontrolconventionsinanyway,whichisexpectedtopromotethelegalizationofglobalindustrialcannabis.AccordingtoBrightfieldGroup,aCBDMarketResearchcompany,thevalueoftheglobalCBDindustrywillreach$5.7billionin2019and$22billionin2022.     Cannabiscanbedividedintoindustrialcannabis,medicalcannabisandleisurecannabis,whichcontainTHC(tetrahydrocannabinol)andCBD(cannabisbisphenol).THCcanbindtoCB1receptorinthebrain,whichhasexcitingeffect;whileCBDhasnopsychoactiveeffect,highmedicalvalue,anti-spasm,anti-anxiety,anti-inflammation,analgesiaandotherpharmacologicaleffects.AconsiderablenumberofCBDdrugs,healthcareproductsandcosmeticshavebeensoldinEuropeanandAmericancountries.     Fohse,aNevada-basedhorticulturallightingsupplier,announcedanagreementwithCurativeCannabis,aCanadianmedicinalcannabisgrower,tosupplyplantgrowthlightstoitsOntarioplant.Theannualproductionofmedicinalcannabisisexpectedtoreach3000kg.Comparedwiththetraditionalhigh-pressuresodiumlamplightingsystem,usingLEDgrowthlights,thecompanyexpectstoincreasehempproductionandsaveabout50%ofenergy.     Withthedevelopmentofhempindustry,itisimperativetoreplacethehigh-voltagesodiumlampwithLEDgrowthlamp,whichusedtoconsumeenergyandcostelectricity.