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href="http://www.cdcfah.com/cp/third-snzmdjeh_tongdengwa/">筒燈</a>?北京led戶外投光燈批發(fā)廠家歡迎來電上海先盛照明電器供應(yīng)</p><div id="xvrn7ej" class="leftbox clearfix"><h1>北京led戶外投光燈批發(fā)廠家歡迎來電上海先盛照明電器供應(yīng)</h1><div id="a7eyea8" class="proBig"><div id="wwb8cht" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781717548828/354470.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2tlc8je" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781717548828/354470.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nr3uvmd" 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>北京led戶外投光燈批發(fā)廠家,投光燈</p><p><span>***更新：</span>2020-11-13 04:11:26</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="dlxovwn" 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="3qseamw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mplm3rh" class="box"><p><p style="text-indent:25px">度發(fā)光的，而在反方向發(fā)出的光就沒有什么用處。所以熒光燈通常采用一個白色的燈罩，可以把相當(dāng)一部分的反向光反射回來，一般來說，熒光燈的燈具效率大約只有70%。而LED日光燈則是120度發(fā)光的，所以全部光都是有效光。雖然有時候也會覺得120度發(fā)光角度窄了一點，不過大多數(shù)情況下還是夠用的。而且這個發(fā)光角度也是可以根據(jù)需要來加以調(diào)整的。前面提到Philips的T8熒光燈的發(fā)光效率為721m/W，北京led戶外投光燈批發(fā)廠家，36W的熒光燈一共發(fā)出2592流明，北京led戶外投光燈批發(fā)廠家，但是燈具效率只有70%，所以有效的流明數(shù)為1814，北京led戶外投光燈批發(fā)廠家.4解決的辦法是DIYled燈時好帶上防靜電手套或相關(guān)防護(hù)設(shè)備，以減少靜電對燈珠的沖擊。北京led戶外投光燈批發(fā)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京led戶外投光燈批發(fā)廠家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781717548828/354470.png"></div><p style="text-indent:25px">按發(fā)光強(qiáng)度和工作電流分―按發(fā)光強(qiáng)度和工作電流分有普通亮度的LED（發(fā)光強(qiáng)度100mcd）;把發(fā)光強(qiáng)度在10～100mcd間的叫高亮度發(fā)光二極管。一般LED的工作電流在十幾mA至幾十mA，而低電流LED的工作電流在2mA 以下（亮度與普通發(fā)光管相同）。除上述分類方法外，還有按芯片材料分類及按功能分類的方法。LED應(yīng)用于路燈有先天優(yōu)勢和劣勢一、優(yōu)勢在于:***，LED作為點光源，如果設(shè)計合理，很大程度上可以直接解決傳統(tǒng)球狀光源必須依靠光發(fā)射來解決的二次取光及光損耗問題;―第二，對光照射面的均勻度可控。山東防水投光燈燈具LED在顯示屏整體成本中所占比例比較大，從30%至70%不等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京led戶外投光燈批發(fā)廠家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781305722656/5520519.png"></div><p style="text-indent:25px">性能特點要求:1.高可靠性特別像LED路燈的驅(qū)動電源，裝在高空，維修不方便，維修的花費也大。2．高效率LED是節(jié)能產(chǎn)品，驅(qū)動電源的效率要高。對于電源安裝在燈具內(nèi)的結(jié)構(gòu)，尤為重要。因為LED的發(fā)光效率隨著LED溫度的升高而下降，所以LED的散熱非常重要。電源的效率高，它的耗損功率小，在燈具內(nèi)發(fā)熱量就小，也就降低了燈具的溫升。對延緩LED的光衰有利。―3．高功率因素功率因素是電網(wǎng)對負(fù)載的要求。一般70瓦以下的用申器，沒有強(qiáng)制性指標(biāo)。</p><p style="text-indent:25px">工作原理介紹系統(tǒng)工作原理簡單，利用光生伏***應(yīng)原理制成的太陽能電池白天太陽能電池板接收太陽輻射能并轉(zhuǎn)化為電能輸出，經(jīng)過充放電.控制器儲存在蓄電池中，夜晚當(dāng)照度逐漸降低至10lux左右、太陽能電池板開路電壓4.5V左右，充放電控制器偵測到這一電壓值后動作，蓄電池對燈頭放電。蓄電池放電8.5小時后，充放電控制器動作，蓄電池放電結(jié)束。充放電控制器的主要作.用是保護(hù)蓄電池。2系統(tǒng)設(shè)計思想太陽能路燈的設(shè)計與一般的太陽能照明相比，基本原理相同，但是需要考慮的環(huán)節(jié)更多。LED亮度的衰減會造成顯示屏整屏亮度降低。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京led戶外投光燈批發(fā)廠家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269782039189453/4436063.png"></div><p style="text-indent:25px">除了這種發(fā)光復(fù)合外，還有些電子被非發(fā)光中心(這個中心介于導(dǎo)帶、介帶中間附近)捕獲，而后再與空穴復(fù)合，每次釋放的能量不大，不能形成可見光。發(fā)光的復(fù)合量相對于非發(fā)光復(fù)合量的比例越大，光量子效率越高。由于復(fù)合是在少子擴(kuò)散區(qū)內(nèi)發(fā)光的，所以光*在靠近PN結(jié)面數(shù)μm以內(nèi)產(chǎn)生。理論和實踐證明，光的峰值波長λ與發(fā)光區(qū)域的半導(dǎo)體材料禁帶寬度Eg有關(guān)，即入≈1240/Eg (mm)式中 Eg的單位為電子伏特(eV)。若能產(chǎn)生可見光(波長在380nm紫光~ 780nm紅光)，半導(dǎo)體材料的Eg應(yīng)在3.26~ 1.63eV之間。美國HP公司在1996年三種顏色的LED燈推出的LED汽車尾燈模組可以隨意組合成各種汽車尾燈。北京led戶外投光燈批發(fā)廠家</p><p style="text-indent:25px">任一顏色LED的失效均會影響顯示屏整體視覺效果。北京led戶外投光燈批發(fā)廠家</p><p style="text-indent:25px">而效率(y則是輸出功率和輸入功率的比值，即輸出功率(輸出LED的電壓*輸出電流/輸入功率，這個參數(shù)尤為重要，涉及到產(chǎn)品和用戶的利益，如果效率低就意味著輸入功率有很大一部分轉(zhuǎn)化為熱量散發(fā)出來;如果是裝在燈管內(nèi)就會產(chǎn)生一個很高的溫度，再加.上我們LED的一個光效比所散發(fā)熱.量，就會疊加產(chǎn)生更高的溫度。而我們的電源內(nèi)部所有電子零件的壽命都會隨溫度的上升而縮短.效率高，轉(zhuǎn)化成光的效率就高，而且電源和燈管的發(fā)熱就會減少，相當(dāng)于省電，產(chǎn)品性能和壽命會提高。所以說效率是決定電源壽命zui根本的因數(shù)，效率不能太低，否則消耗在電源上的熱量太大。一般在0.8-0.9以上就可以了。功率因素，效率這兩個指標(biāo)有時會北京led戶外投光燈批發(fā)廠家</p><p style="text-indent:25px">上海先盛照明電器有限公司是一家照明電器、五金交電、勞防用品、機(jī)電設(shè)備批發(fā)零售；照明電器設(shè)計、安裝。的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。上海先盛照明擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊，以高度的專注和執(zhí)著為客戶提供投光燈，三防燈，筒射燈，燈管。上海先盛照明致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。上海先盛照明創(chuàng)始人顧勇軍，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: 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