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id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="sclhsub" class="twoCol"><div id="2c78mwi" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_zmgy/">照明工業(yè)</a>?<a href="http://www.cdcfah.com/cp/second-zmgy_snzmdjeh/">室內(nèi)照明燈具</a>?<a href="http://www.cdcfah.com/cp/third-snzmdjeh_tongdengwa/">筒燈</a>?上海批發(fā)投光燈具歡迎來電上海先盛照明電器供應(yīng)</p><div id="tnklkgl" class="leftbox clearfix"><h1>上海批發(fā)投光燈具歡迎來電上海先盛照明電器供應(yīng)</h1><div id="o229n2w" class="proBig"><div id="nctl7lb" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781305722656/5520519.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xwdkear" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781305722656/5520519.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="isugs8l" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海批發(fā)投光燈具,投光燈</p><p><span>***更新：</span>2021-01-24 08:07:20</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nh3oobx" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海先盛照明電器有限公司</a></p><p><span>聯(lián)系人：</span>顧勇軍</p><p><span>郵箱: </span>522366548@qq.com</p><p><span>電話: </span>13301861712</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-54169416</p><p><span>地址: </span>陶干路1199號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="w74sjne" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="aumsbzz" class="box"><p><p style="text-indent:25px">比紅光波長長的光為紅外光?，F(xiàn)在已有紅外、紅、黃、綠及藍(lán)光發(fā)光二極管，但其中藍(lán)光二極管成本、價格很高, 使用不普遍。LED的調(diào)光控制傳統(tǒng)上，LED的調(diào)光是利用一個DC信號或濾液PWM對LED中的正向電流進(jìn)行調(diào)節(jié)來完成的。減小LED電流將起到調(diào)節(jié)LED光輸出強(qiáng)度的作用，然而，正向電流的變化也會改變LED的彩色，上海批發(fā)投光燈具,因為LED的色度會隨著電流的變化而變化。許多應(yīng)用(例如汽車和LCD TV背光照明)都不能允許LED發(fā)生任何的色彩漂移，上海批發(fā)投光燈具。在這些應(yīng)用中，由于周圍環(huán)境中存在不同的光線變化，上海批發(fā)投光燈具，而且人眼對于光強(qiáng)的微小變化都很敏感，因此寬范圍調(diào)光是必需的。來看看我們操作的Led燈珠在操作時有沒有進(jìn)行正確的連接。上海批發(fā)投光燈具</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海批發(fā)投光燈具,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781305722656/5520519.png"></div><p style="text-indent:25px">LED手電簡發(fā)光二極管是由III-IV族化合物，如GaAs (砷化鎵)、GaP (磷化鎵)、<span style="display:none;"></span>GaAsP<span style="display:none;"></span>(磷砷化鎵)等半導(dǎo)體制成的，其**是PN結(jié)。因此它具有一般P-N結(jié)的I-N特性，即正向?qū)?，反向截止、擊穿特性。此外，? -定條件下，它還具有發(fā)光特性。在正向電壓下，電子由N區(qū)注入P區(qū)，空穴由P區(qū)注入N區(qū)。進(jìn)入對方區(qū)域的少數(shù)載流子(少子)一部分與多數(shù)載流子(多子)復(fù)合而發(fā)光，假設(shè)發(fā)光是在 P區(qū)中發(fā)生的，那么注入的電子與價帶空穴直接復(fù)合而發(fā)光，或者先被發(fā)光中心捕獲后，再與空穴復(fù)合發(fā)光。上海批發(fā)投光燈具汽車用白熾燈不耐震動撞擊、易損壞、壽命短，需要經(jīng)常更換。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海批發(fā)投光燈具,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781652041016/5513893.png"></div><p style="text-indent:25px">理論上可以做到在目標(biāo)區(qū)域內(nèi)完全均勻，這也能避免傳統(tǒng)光源“燈下亮"現(xiàn)象中的光浪費;―第三，色溫可選，這樣在不同場合的應(yīng)用中，也是提高效率、降低成本的一個重要途徑;―第四，技術(shù)進(jìn)步空間依然很大。二、劣勢(影響路燈推廣應(yīng)用的因素)有:―當(dāng)前價格還太高，光通量低，當(dāng)前同等照度設(shè)計的LED光源價格大約相當(dāng)于傳統(tǒng)光源的4倍(不過在路燈產(chǎn)品中，光源部分占總成本并不高，所以在工程安裝中的成本提高比例也不會太高，應(yīng)用的空間還是比較大的)，在民用中難以承受。<span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span></span></p><p style="text-indent:25px">若抗風(fēng)系數(shù)選定為27m/s（相當(dāng)于十級臺風(fēng)），根據(jù)非粘性流體力學(xué)，電池組件承受的風(fēng)壓只有365Pa。所以，組件本身是完全可以承受27m/s的風(fēng)速而不至于損壞的。所以，設(shè)計中關(guān)鍵要考慮的是電池組件支架與燈桿的連接。在本套路燈系統(tǒng)的設(shè)計中電池組件支架與燈桿的連接設(shè)計使用螺栓桿固定連接。(2)路燈燈桿的抗風(fēng)設(shè)計路燈的參數(shù)如下:電池板傾角A = 16d燈桿高度= 5n設(shè)計選取燈桿底部焊縫寬度à=4mm燈桿底部外徑= 168mn如圖3，焊縫所在面即燈桿破壞面。由于LED響應(yīng)速度快,可以及早提醒司機(jī)剎車，減少汽車追尾事故，在發(fā)達(dá)國家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海批發(fā)投光燈具,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781806748047/1466494.png"></div><p style="text-indent:25px">目前我們國家有標(biāo)準(zhǔn);GBT19064~2003家用太陽能光伏電源系統(tǒng)技術(shù)條件和試驗方法對戶用光伏電源產(chǎn)品(以下簡稱產(chǎn)品進(jìn)行評價。該標(biāo)準(zhǔn)產(chǎn)品部件提出了相關(guān)的技術(shù)要求，對組裝成一體的產(chǎn)品整體性沒有評價標(biāo)準(zhǔn)。2004年10月，IEC頒布了國際標(biāo)準(zhǔn)I正C62124**光伏系統(tǒng)一設(shè)計驗證(PhotovOItaic(PV1standa1Onesystems—Des_gnvermcation，該標(biāo)準(zhǔn)制定了對**光伏系統(tǒng)設(shè)計進(jìn)行驗證試驗的程序，以及系統(tǒng)設(shè)計驗證的技術(shù)要求，從而可以對系統(tǒng)整體性能進(jìn)行評估。標(biāo)準(zhǔn)的范圍和目的IEC62124標(biāo)準(zhǔn)所包括的技術(shù)性能測試方法和程序適用于**光伏發(fā)電系統(tǒng)。一般來說，LED的人體靜電模式測試失效電壓不應(yīng)低于2000V。湖北批發(fā)投光燈廠家</p><p style="text-indent:25px">看LED燈帶表面的清潔度。如果采用SMT工藝生產(chǎn)的LED燈帶，其表面的清潔度非常好，看不到什么雜質(zhì)和污漬。上海批發(fā)投光燈具</p><p style="text-indent:25px">LED三防燈性能優(yōu)點 1、節(jié)能:同等功率的LED燈耗電*為白熾燈的10%，比日光燈還要節(jié)能，不發(fā)燙,防油,防塵.2、壽命長:LED燈珠的可以工作5萬小時，比日光燈和白熾燈都長。3、可調(diào)光:以前的調(diào)光器一直是針對白熾燈的，白熾燈調(diào)暗時光線.發(fā)紅;很難見到日光燈調(diào)光器，這是調(diào)光技術(shù)很多年沒有發(fā)展的主要原因;現(xiàn)在LED又可以調(diào)光了，并且無論是亮還是暗光都是同樣的顏**溫基本不變)，這一點明顯優(yōu)于白熾燈的調(diào)光。4可頻繁開關(guān): LED的壽命是按點亮?xí)r算的，即便每秒鐘開關(guān)數(shù)千次也不影響LED壽命，在裝飾等需要頻繁亮滅的場合，LED燈有***優(yōu)勢。上海批發(fā)投光燈具</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2986517.html</p></div></div></div></div></div><div id="vkrjvcj" class="page-right twoColRt"><div id="7w9iu88" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="k8p4t9w" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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