LED功率：3W電池：4V3500MA電流：480MALED：6 PCS材料：塑料ABS/透明PC太陽能板：6V200MA 1.2W產(chǎn)品尺寸:180mmX180mmX270mm/1pcs外包裝尺寸:535mm 360mm 570mm/12pcs20尺柜：2856個 LightSupply:Solar LightSource: LED Maintainnessfreeandautomaticallylighting(Lightcontrol) 1.太陽能光伏發(fā)電的原理 太陽能光伏發(fā)電是依靠太陽能電池組件，利用半導(dǎo)體材料的電子學(xué)特性，當(dāng)太陽光照射在半導(dǎo)體PN結(jié)上，由于P-N結(jié)勢壘區(qū)產(chǎn)生了較強的內(nèi)建靜電場，因而產(chǎn)生在勢壘區(qū)中的非平衡電子和空穴或產(chǎn)生在勢壘區(qū)外但擴散進勢壘區(qū)的非平衡電子和空穴，在內(nèi)建靜電場的作用下，各自向相反方向運動，離開勢壘區(qū)，結(jié)果使P區(qū)電勢升高，N區(qū)電勢降低，從而在外電路中產(chǎn)生電壓和電流，將光能轉(zhuǎn)化成電能。2.LED照明的優(yōu)點LED半導(dǎo)體照明光源除具有使用壽命長、發(fā)光效率高、體積小、重量輕、環(huán)保安全可靠等優(yōu)點以外，還有一個顯著優(yōu)點就是由于LED啟動電壓和工作電壓一致，所以不需使用鎮(zhèn)流器。這樣在節(jié)省成本和能耗的同時，也大大縮短了通斷電的響應(yīng)時間。3.太陽能與LED照明的結(jié)合太陽能光伏發(fā)電技術(shù)能與LED照明完美結(jié)合的關(guān)鍵在于兩者同為直流電、電壓低且能互相匹配。因此兩者的結(jié)合不需要將太陽能電池產(chǎn)生的直流電轉(zhuǎn)化為交流電，因此大大提高了整個照明系統(tǒng)的效率。同時，借助于并網(wǎng)技術(shù)或利用蓄電池充放能量，使其優(yōu)勢更加明顯。隨著相關(guān)技術(shù)的深入研究，LED的發(fā)光效率正在不斷提高，超高亮度的LED將要問世，勢必會取代普通照明電光源，并大量節(jié)約能源且無污染。由于LED的工作電流是直流，且工作電壓較低。太陽電池將光能轉(zhuǎn)化為直流電能，且太陽電池組件可以通過串并聯(lián)方式組合得到實際需要的電壓。這些特點恰好與LED相匹配，兩者結(jié)合將獲得很高的能源利用率、較高的安全性能和可靠性，實現(xiàn)節(jié)能、環(huán)保、安全、高效的照明系統(tǒng)，實現(xiàn)十分完美結(jié)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.