LEDLightingForHorticultureApplications
Presentedby:ShenaliParikh
December21,2016
AGENDA:
TODAY’SAGENDATopics:
OverviewBenefitsofLEDLumensvs.PARKeyMetricsDeterminingWhatYouNeedforYourJobHorticultureLighting
TheScienceBehindItApplicationsT8Lamp
HORTICULTURELIGHTINGWhatisHorticultureLighting?
Horticulturerelatestotheart,scienceandtechnologyofgrowingagricultureLEDLightingisusedtosupplement/substitutenaturalsunlighttogrowplants
WhatistheLEDhorticulturemarketsizeandwherearetheopportunitiesforgrowth?
By2020,growthisexpectedtobealmost$2billionataCAGRof26.93%UsedformoreapplicationsasLEDlightmakesitpossibleforefficientlygrowingplants,conservingspaceandimprovingyields
HowisLEDhorticulturelightingdifferentfrom“normal”LEDlighting?
Withhorticulturelighting,themainconcernishowmuchusablelightisreachingtheplant.Thethreekeymetricsforhorticulturelightingarephotosyntheticphotonflux(PPF),photosyntheticphotonfluxdensity(PPFD),andphotonefficiency.
LEDHORTICULTURE:
BENEFITSOFLEDLIGHTING
GreaterYield
HVACSavings
WattageReduction
LEDHORTICULTURE:
LUMENSVS.PAR
PhotopicResponseCurveLumens
Unitofmeasurementbasedonhumaneye’ssensitivityinwell-litconditions.
PhotosyntheticResponseCurvePhotosyntheticActiveRadiation(PAR)
Plants“see”morelightthanhumans.Lightwithinthe400nmto700nmrangeisusedbyaplanttosupportphotosynthesis.
LEDHORTICULTURE:
KEYMETRICS
PhotosyntheticPhotonFlux(PPF)
•HowmuchPARdoesafixtureproduce?
•Measurestotalamountoflightproducedeachsecond
•Measuredinµmol/s
PhotosyntheticPhotonFluxDensity
(PPFD)
•HowmuchofthePARisavailabletoplants?
•Measureshowmuchoftheactivephotonsfallonagivensurfaceoftheplant.
•PPFDchangeswithcoverageareaandheight.
•Measuredinµmol/s/m"
PhotonEfficiency
•HowmuchenergydoesthefixtureneedtodeliverPARtoplants?
•MeasureshowefficientlyafixtureconvertselectricalenergyintousablePARphotons.
•Measuredinµmol/J
CoverageArea
•Atagivenmountingheight,whatareaoftheplantbediscovered?
•Asmountingheightchanges,coverageareaandPPFDwillchange.
•Measuredinm"
LEDHORTICULTURE:
COMPARINGAPPLESTOORANGESDon’tcomparewattages
Don’tcomparelumens
There’snoknownidealgrowthspectrum
UnderstandhowPARandPPFDvaryovercoverageareas
Differentformfactorsareeffectivefordifferentapplications
Keepinmindthemainobjectiveinhorticulturelighting:
Doestheyieldincrease?
LEDHORTICULTURE:
LEDHORTICULTURELIGHTING
LEDLightingBlue
Wavelength(450-495nm)
Heavybluelightpromotesvegetation
RedWavelength(620-700nm)
Heavyredlightpromotesflowering
FarRedWavelength(700-750nm)
Farredlightpromotes
EmersonEffect
LEDHORTICULTURE:
EMERSONEFFECT
Useredlightonly(660nm)• Idealforflowering• Mimicsdirectsunlight
Useredlight(660nm)+farredlight(730nm)• Acceleratesstemgrowth• Mimicsshade
LEDHORTICULTURE:
APPLICATIONS
• Indoorgrowareas• Nosunlight
Substitution
• Greenhouses• Supplementsnaturaldaylight• UseLEDtoraisegrowlevelsandyields
Supplemental
• Greenhousesoroutdoorfarming• Artificiallyextendnaturaldaylength
Photoperiodic
LEDHORTICULTURE:
THESCIENCEBEHINDIT
PhotosynthesisProcessbywhichplantsconvertCO₂intocarbohydratesfornutrients
SpectralCompositionDifferentwavelengthsaffectdifferentareasofthegrowthcycle
PhotoperiodThelengthofdayandnightrequiredforinitiationofflowering
Germination Vegetation
Flowering
LEDHORTICULTURE:
ABSORPTIONOFLIGHT
ByChlorophyll_ab_spectra2.PNG:DanielePugliesiderivativework:M0tty- ThisfilewasderivedfromChlorophyllabspectra2.PNG:,CCBY-SA3.0,https://commons.wikimedia.org/w/index.php?curid=20509583
LEDHORTICULTURE:
APPLICATIONS:AISLEFARMINGToplighting
FixturesarehunghighertomimicsunlightduringdarkerhoursSignificantreductioninheatproductionAllowsforlowermountingheightsandmorecoverage
ProductTypeWidedistributiontocoverlargeareasHighpowerproducttopenetratetallcanopiesMinimizationofhotspotsMinimizationoflight“lost”toaislesandwalls
LEDHORTICULTURE:
APPLICATIONS:GREENHOUSESInterlighting
Topreventthe“shadowing”effectsoftoplighting,LEDscanbeplacedbetweentheplantsandtheleavestobetterdistributelight.
Toplighting
ProductTypeWidedistributiontocoverlargeareasSlimproducttoavoidshadowsHighpowerproducttopenetratetallcanopies
LEDHORTICULTURE:
APPLICATIONS:VERTICALFARMINGToplighting
FixturesarehunghighertomimicsunlightduringdarkerhoursSignificantreductioninheatproductionAllowsforlowermountingheightsandmorecoverage
Interlighting
ProductTypeSlimprofiletocoversmallerfootprintsLowerwattageneeds
LEDHORTICULTURE:
APPLICATIONS:RESIDENTIALFARMINGMarijuanalegalizationcontinuestospreadacrossthecountry
Increaseinresidentialgrowermarket
ProductTypeT8andT5horticulturetubesSmall,lowwattage“lowbays”CanopypenetrationandPPFnotkeyfactors
LEDHORTICULTURE:
FUTUREOUTLOOKIn2015inDenver,Colorado,Bloombergreported:
1200licensedgrowfacilitiesContributedtohalfofstate’snewpowerdemands(equivalentto35,000households)
StudiesShow:Legalindoormarijuanagrowfacilitiesaccountedfor1%ofnationalelectricityuseatcostof$6billionperyear
FutureRebateswillcontinuetoincreaseacrossthenationalAlmostallprogramsoffercustomizedrebatesforagricultureapplications
LEDHORTICULTURE:
LEDHORTICULTURE– T8LAMP
FeaturesL18T8SE415Single-ended(self-ballasted)NominalWattage:18WLength=4FTGlass-freedesign
Peakwavelengthsat450nm(royalblue)and650nm(deepred)topromoteFLOWERING
LEDHORTICULTURE:
ATOTALSOLUTION!
COMPLETESOLUTION
LEDHORTICULTURE:
QUESTIONS/ANSWERS
Thank you everyone for your attention! Please feel free to use this opportunity to ask any questions you may have about MaxLite or the products shown in this presentation.
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