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LED功率：3W电池：4V3500MA电流：480MALED：6 PCS材料：塑料ABS/透明PC太阳能板：6V200MA 1.2W产品尺寸:180mmX180mmX270mm/1pcs外包装尺寸:535mm 360mm 570mm/12pcs20尺柜：2856个 LightSupply:Solar LightSource: LED Maintainnessfreeandautomaticallylighting(Lightcontrol) 1.太阳能光伏发电的原理 太阳能光伏发电是依靠太阳能电池组件，利用半导体材料的电子学特性，当太阳光照射在半导体PN结上，由于P-N结势垒区产生了较强的内建静电场，因而产生在势垒区中的非平衡电子和空穴或产生在势垒区外但扩散进势垒区的非平衡电子和空穴，在内建静电场的作用下，各自向相反方向运动，离开势垒区，结果使P区电势升高，N区电势降低，从而在外电路中产生电压和电流，将光能转化成电能。2.LED照明的优点LED半导体照明光源除具有使用寿命长、发光效率高、体积小、重量轻、环保安全可靠等优点以外，还有一个显著优点就是由于LED启动电压和工作电压一致，所以不需使用镇流器。这样在节省成本和能耗的同时，也大大缩短了通断电的响应时间。3.太阳能与LED照明的结合太阳能光伏发电技术能与LED照明完美结合的关键在于两者同为直流电、电压低且能互相匹配。因此两者的结合不需要将太阳能电池产生的直流电转化为交流电，因此大大提高了整个照明系统的效率。同时，借助于并网技术或利用蓄电池充放能量，使其优势更加明显。随着相关技术的深入研究，LED的发光效率正在不断提高，超高亮度的LED将要问世，势必会取代普通照明电光源，并大量节约能源且无污染。由于LED的工作电流是直流，且工作电压较低。太阳电池将光能转化为直流电能，且太阳电池组件可以通过串并联方式组合得到实际需要的电压。这些特点恰好与LED相匹配，两者结合将获得很高的能源利用率、较高的安全性能和可靠性，实现节能、环保、安全、高效的照明系统，实现十分完美结合。1.SolarphotovoltaicenergyprincipleSolarpowerisdependonsolarpanel,andusingtheelectronicsfeatureofsemiconductormaterials.ThesunlightwillturnintoelectricitywhenthesuninthepropertiesofsemiconductorPNjunction.P-N barrierareahasstrongbuilt-inelectrostaticfield,thusproduceinthepotentialofelectronicandunbalancedincavitationsorpotentialbarrierareabutspreadintothepotentialofelectronicandcavities.Undertheactionofthebuilt-instaticelectricityarea,theymovetheoppositedirectionandleavebarrier.ThenthepotentialofPareawillgoup,andthepotentialofNareawillgodown.Thusitproducesthevoltageandcurrentintheoutsidecircuitandturnthelightintoelectricity.Solarpowersystemsgenerallycanbedividedintotwokinds.Onekindisgridpowersystem,namelyandutilitygridconnectedthroughastandardinterface,likeasmallplant.Anotherkindisabsolutepowersystem,namelyintheirowninternalformclose-circuitsystem.GridgenerationsystemthroughthePVarraywillreceivethesolarradiationenergyturnDChigh-frequencyintoDCvoltage.Itoutputsthevoltageofsamefrequencyandphasesinusoidalalternatingasthegridafterbeinginvertedbytheinverter.Butindependentpowergenerationsystemsphotovoltaicarrayfirstwillreceivethesolarradiationenergydirectlyintoelectricitytosupplytheloads,andredundantenergyintheformofchemicalsinstoredinbatterybychargingcontroller.2.LEDlight sadvantages:LEDsemiconductorlightingsourcehavelonguselife,highluminousefficiency,smallvolume,lightweight,environmentalandsafety.Besides，thereisnoneedtousetheballastasLED sstartingvoltageisthesameasworkingvoltage.That sthesignificantadvantageofLED.Soincostsavingsandenergyconsumption,butalsogreatlyreducedthroughtheresponsetimeofthepower.3.ThecombinationofsolarenergyandLEDlightingSolarphotovoltaicpowertechnologyandtheperfectcombinationofLEDlightingliesinbothdclowvoltage,witheachotherandcanmatch.ThereforethecombinationofbothneednotbeproducedsolarbatteryDCintoAC,thusgreatlyimprovetheefficiencyofthewholelightingsystem.Atthesametime,bygridtechnologyoruserechargeablebatterychargeanddischargepower,whichmakesitsadvantageismoreapparent.Withtherelatedtechnicalresearch,LEDluminousefficiencyisimprovingandhighbrightnessLEDwillbeingtothemarket.Itmayinsteadofordinarylightsourceisboundtosaveenergyandpollution-free.DuetoLED sworkingcurrentisDClowvoltage.SolarcellscanbeturnedthelightintoDCelectricity.Solarcellmodulecanbeobtainedthroughaseriesofpracticalwaystovoltage.ThesefeaturescoincidewithmatchLED.Acombinationofhighenergyutilizationwillobtainthesafety,highreliabilityandperformance,energysaving,environmentalprotection,safety,highefficiency,andrealizethelightingsystemistheperfectcombination.