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class="home-main container clearfix"><div id="keos3i9" class="twoCol"><div id="b22spmt" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</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>?河南大功率投光燈具批發(fā) 歡迎來電上海先盛照明電器供應</p><div id="7ifrovh" class="leftbox clearfix"><h1>河南大功率投光燈具批發(fā) 歡迎來電上海先盛照明電器供應</h1><div id="tnmtvcj" class="proBig"><div id="rb2xp2e" 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="zo4dafa" 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="vfubyv3" 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)品關鍵詞：</span>河南大功率投光燈具批發(fā),投光燈</p><p><span>***更新：</span>2020-10-15 02:04:51</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="8x3ogik" 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: </span>021-54169416</p><p><span>地址: </span>陶干路1199號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="kj98rtv" class="page-proshow02"><p class="title">詳細說明</p><div id="hwvcebn" class="box"><p><p style="text-indent:25px">一般都要用串、并聯(lián)來聯(lián)接，來適應不同的工作電壓，串聯(lián)的LED燈越多影響越大，只要其中有一個LED燈內(nèi)部連線開路，將造成該串聯(lián)電路的整串LED燈不亮，可見這種情況比第一種情況要嚴重的多。LED死燈是影響產(chǎn)品質量、可靠性的關健，如何減少和杜絕死燈，提高產(chǎn)品質量和可靠性，是封裝、應用企業(yè)需要解決的關鍵問題。下面是對造成死燈的一些原因作一些分析探討1、靜電對LED芯片造成損傷，使LED芯片的PN結失效，河南大功率投光燈具批發(fā)，漏電流增大，變成一個電阻衰減特性除與紅、綠，河南大功率投光燈具批發(fā)，河南大功率投光燈具批發(fā)、藍LED本身特性相關外，使用電流、PCB板散熱設計、顯示屏使用環(huán)境溫度等均對衰減影響。河南大功率投光燈具批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南大功率投光燈具批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781717548828/354470.png"></div><p style="text-indent:25px">LED的發(fā)光亮度正比于PWM的脈沖占空比，在這種調光控制方法下，可以在高度調光比范圍內(nèi)保持LED的發(fā)光顏色不變，采用PWM的LED調光控制的調光比范圍可達3000: 1。線性 LED調光控制方法就是采用模擬調光控制方法，在模擬調光控制下，通過調節(jié)LED的正向工作電流來實現(xiàn)LED的調光控制，調光控制范圍可達10:1。如果要進一步降低LED的正向工作電流則會產(chǎn)生LED發(fā)光顏色發(fā)生變化和不能準確調節(jié)控制LED的正向工作電流的問題。運作參數(shù)和效率 - -般zui常見的LED工作功率都是設定于30至60毫瓦電能以下。天津大功率投光燈具失效率：由于全彩顯示屏由上萬甚至幾十萬組紅、綠、藍三種LED組成的像素點組成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南大功率投光燈具批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781212353516/4466745.png"></div><p style="text-indent:25px">根據(jù) 發(fā)光二極管出光處摻或不摻散射劑、有色還是無色，上述各種顏色的發(fā)光二極管還可分成有色透明、無色透明、有色散射和無色散射四種類型。散射型發(fā)光二極管和達于做指示燈用。2、按發(fā)光管出光面特征分―按發(fā)光管出光面特征分圓燈、方燈、矩形、面發(fā)光管、側向管、表面安裝用微型管等。圓形燈按直徑分為p2mm.p4.4mm、5mm、8mm、p10mm及 p20mm等。困外通常把p3mm 的發(fā)光二極管記作T-1;把5mm的記作T-1(3/4）﹔把q4.4mm的記作T-1 (1/4）。由半值角大小可以估計圓形發(fā)光強度角分布情況。</p><p style="text-indent:25px">和熒光燈相比大約可以節(jié)省一半以上的電，也就是說采用一個18瓦的LED日光燈可以取代一個36瓦的熒光燈。不僅如此，LED日光燈還有很多其他優(yōu)點:4.壽命長:一個仔細設計的LED日光燈的壽命可以達到5萬小時。而一個熒光燈的壽命通常只有5, 000小時(有些國產(chǎn)的熒光燈壽命只有300小時)。二者相差將近10倍。比較好的長壽命日光燈也只有10,000小時，二者也還相差5倍。5.不含汞，無污染。我們知道，熒光燈都含有汞。36mm熒光燈中含有25-45mg的汞，26mm (T8) 中含有20mg的汞。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="河南大功率投光燈具批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781968994141/3260429.png"></div><p style="text-indent:25px">隔離/非隔離:一般隔離電源如做成15W，放在LED燈管內(nèi)，其變壓器體積很大，很難放進去。尤其對T6/T8燈管，幾乎不可能的，所以隔離的一般只能做到10W,超過10W的很少，并且價格很貴。所以，隔離的性價比不高，一般是非隔離的占主流較多，體積可以做得更小，zui小可以做到高8毫米，實際上，非隔離的安全措施做好了，是不存在問題的。電源效率與功率因素:功率因素是有功功率和總功率的比值(C，剩下的無功功率在電網(wǎng)中相互轉化，用戶的電表不會計量無功功率的，對用戶的電表沒任何影響，只是供電局收不到用戶無功功率的錢。視角的圓形LED就夠了。江蘇大功率投光燈報價</p><p style="text-indent:25px">一致性：全彩顯示屏是由無數(shù)個紅、綠、藍LED組成的像素拼成的，每種顏色LED的亮度。河南大功率投光燈具批發(fā)</p><p style="text-indent:25px">而熒光燈都是采用易碎的玻璃作為外殼，一旦玻璃破碎，其中的汞就會馬上就會蒸發(fā)到空氣中，瞬間可使周圍空氣中的汞濃度達到10-20毫克/立方米，超過國家規(guī)定的1000- 2000倍。而汞是一種對人體十分有害的有毒物質，汞蒸氣達0. 04至3毫克時會使人在2至3月內(nèi)慢性中毒，達1. 2至8.5毫克時會誘發(fā)急性汞中毒，如若其量達到20毫克，會直接導致動物死亡。而1mg的汞就足以污染5454.5公斤的飲用水，使之達不到飲用標準。而LED日光燈中不含任何有毒物質，是一種完全綠色環(huán)保無污染光源。<span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span></span>河南大功率投光燈具批發(fā)</p><p style="text-indent:25px">上海先盛照明電器有限公司致力于照明工業(yè)，是一家貿(mào)易型的公司。公司自成立以來，以質量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下投光燈，三防燈，筒射燈，燈管深受客戶的喜愛。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造照明工業(yè)良好品牌。上海先盛照明立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1556349.html</p></div></div></div></div></div><div id="o2w82qf" class="page-right twoColRt"><div id="wqfmoam" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ue8wtq2" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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