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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>?湖北戶外投光燈性能歡迎來電上海先盛照明電器供應</p><div id="mdprypw" class="leftbox clearfix"><h1>湖北戶外投光燈性能歡迎來電上海先盛照明電器供應</h1><div id="clipl7a" class="proBig"><div id="d772o3a" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781448710938/2265050.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bk2r3s8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781448710938/2265050.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3zvh3gi" 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>湖北戶外投光燈性能,投光燈</p><p><span>***更新：</span>2021-01-30 00:17:25</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="d39gif8" 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="k8qonz2" class="page-proshow02"><p class="title">詳細說明</p><div id="8dz23y4" 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，湖北戶外投光燈性能。前面提到Philips的T8熒光燈的發(fā)光效率為721m/W，湖北戶外投光燈性能，36W的熒光燈一共發(fā)出2592流明，但是燈具效率只有70%，所以有效的流明數(shù)為1814.4按1000小時常溫點亮20mA標準，湖北戶外投光燈性能，紅色衰減應小于2%，藍、綠色衰減應小于10%。湖北戶外投光燈性能</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北戶外投光燈性能,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781448710938/2265050.png"></div><p style="text-indent:25px">接下來，我們聊聊為什么LED燈在關閉開關后還是發(fā)光:一、首先的原因就是我們的電路中火線直接進LED驅(qū)動器了，零線進開關，在關閉開關之后，致使切斷了零線，火線還一直和驅(qū)動器鏈接，加上了的燈工作的環(huán)境，LED在感應微弱的電流之后，就會觸發(fā)驅(qū)動器，也就是能使燈珠發(fā)光。二、在我們生活的空間內(nèi)，到處都是微弱的電波，我們只是習慣了這種電波，所以對人也沒有太大的影響，但是這對我們的LED驅(qū)動就不一樣了。三、再有就是可能存在燈具漏電的原因，經(jīng)個人多年來的經(jīng)驗判斷，有一些LED燈具在關閉電源開關之后，即使火線進開關，依然會亮，而且特別的亮，零線和火線顛倒順序之后，仍然會亮，這種原因的可能就很大。江蘇led戶外投光燈led看FPC質(zhì)量。FPC分敷銅和壓延銅兩種,敷銅板的銅箔是凸出來的，細看的話能從焊盤與FPC的連接處看出來。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北戶外投光燈性能,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781495341797/4514745.png"></div><p style="text-indent:25px">靜電是一種危害極大的魔鬼，全世界因為靜電損壞的電子元器件不計其數(shù)，造成數(shù)千萬美元的經(jīng)濟損失。所以防止靜電損壞電子元器件，是電子行業(yè)一項很重要的工作，LED封裝、應用的企業(yè)千萬不要掉以輕心。任何一個環(huán)節(jié)出問題，都將造成對LED的損害，使LED性能變壞甚至失效。我們知道人體（ESD）靜電可以達到三千伏左右，足可以將LED芯片擊穿損壞，在LED封裝生產(chǎn)線，各類設備的接地電阻是否符合要求，這也是很重要的，一般要求接地電阻為4歐姆，有些要求高的場合其接地電阻甚至要達到≤2歐姆。</p><p style="text-indent:25px">一般金的導電率比較好，銀次之。在焊接工藝時，由于焊接實際上是形成合金的過程，這個合金本身就是良導體，所以焊接本身的可靠性是比較高的，除非是焊接不良。但是，連接器之間的連接，靠的是表面之間的接觸，所以容易導致接觸不良，更具體的原因分析如下。兩個金屬表面之間的接觸是否良好，主要取決于材料（不同金屬導電率不同)、接觸壓力、實際接觸面結。關于材料種類，上面已經(jīng)提到了，一般器件的鍍層材料，基本上都是由良導體做的，對接觸不良的影響不大。來看看我們操作的Led燈珠在操作時有沒有進行正確的連接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北戶外投光燈性能,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781806748047/1466494.png"></div><p style="text-indent:25px">有些元器件是因為自身內(nèi)部的接觸不良，也有元器件互連時的接觸不良，也有虛焊（一般為組件與PCB）產(chǎn)生的不良。下面以zui常見的連接器（接插件）之間的接觸為實例分析接觸不良問題，之后大家可以觸類旁通。連接器一般是針接觸件和孔接觸件之間的連接。我們知道，元器件的引腳或端子，一般是有一層鍍層，比如鍍鉛錫合金、鍍純錫、鍍鎳、鍍銀、鍍銀鈀合金、鍍金、等等。所以組件之間的接觸，其實就是這些鍍層金屬之間的接觸。當然，不同的鍍層金屬的導電率是不同的，對應產(chǎn)生的接觸電阻也有所不同?？轨o電能力：LED是半導體器件，對靜電敏感，極易引致靜電失效，故抗靜電能力對顯示屏的壽命至關重要。江蘇led戶外投光燈廠家</p><p style="text-indent:25px">LED器件將是顯示屏整機中比較耐用的部件之一。湖北戶外投光燈性能</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，效率這兩個指標有時會湖北戶外投光燈性能</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3068020.html</p></div></div></div></div></div><div id="2jvctfm" class="page-right twoColRt"><div id="jf8nkht" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lfwov8l" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div 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