四川投光燈批發(fā)廠家歡迎來電上海先盛照明電器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="LED日光燈優(yōu)缺點點評 zui近以來，led日光燈成為zui早進入室內(nèi)的LED燈具之一，因為它相對于熒光燈來說具有很多優(yōu)點。一．優(yōu)點相對于熒光燈來說，led日光燈具有**優(yōu)點:1.發(fā)光效率高:熒光燈的發(fā)光效率大約是5"><meta name="keywords" content="四川投光燈批發(fā)廠家,投光燈"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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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>?四川投光燈批發(fā)廠家歡迎來電上海先盛照明電器供應(yīng)</p><div id="ldfxjvu" class="leftbox clearfix"><h1>四川投光燈批發(fā)廠家歡迎來電上海先盛照明電器供應(yīng)</h1><div id="9p24vhe" class="proBig"><div id="p7zwszq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781175878906/6687908.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="oipwdar" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781175878906/6687908.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="f2evctk" 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>四川投光燈批發(fā)廠家,投光燈</p><p><span>***更新：</span>2021-01-31 08:07:34</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fcirdx7" 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(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="lpf9xng" class="page-proshow02"><p class="title">詳細說明</p><div id="xbp2epc" class="box"><p><p style="text-indent:25px">LED日光燈優(yōu)缺點點評 zui近以來，led日光燈成為zui早進入室內(nèi)的LED燈具之一，因為它相對于熒光燈來說具有很多優(yōu)點。一．優(yōu)點相對于熒光燈來說，led日光燈具有**優(yōu)點:1.發(fā)光效率高:熒光燈的發(fā)光效率大約是55-80 lm/W (Philips公司T8熒光燈的發(fā)光效率為72lm/W)，而LED的發(fā)光效率在100 lm/W以上，zui近Cree公司的XLampXP-G的發(fā)光效率已經(jīng)到130流明/W，而且以后還會不斷提升，四川投光燈批發(fā)廠家。二者之差現(xiàn)在已經(jīng)將近一倍，四川投光燈批發(fā)廠家。而以后有可能達到3倍以上，四川投光燈批發(fā)廠家。2.燈具效率高:燈具的效率主要是指有效光效，因為熒光燈是360波長的一致性決定了整個顯示屏的亮度一致性、白平衡一致性、色度一致性。四川投光燈批發(fā)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川投光燈批發(fā)廠家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781175878906/6687908.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)。江西專業(yè)投光燈led的貼片LED。高速公路上的顯示屏由于其特殊性一般選用30°;</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川投光燈批發(fā)廠家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269782155068360/7868258.png"></div><p style="text-indent:25px">燈桿破壞面抵抗矩W的計算點Р到燈桿受到的電池板作用荷載F作用線的距離為PQ=[5000+168+6）/tan16o]x Sin16o = 1545mm =1.545m所以，風(fēng)荷載在燈桿破壞面上的作用矩M = F1.545。根據(jù)27m/s的設(shè)計zui大允許風(fēng)速，2×30W的雙燈頭太陽能路燈電池板的基本荷載為730N?？紤]1.3的安全系數(shù)，F(xiàn)= 1.330 = 949N所以，M= F1.545 = 9491.545 = 1466N.m根據(jù)數(shù)學(xué)推導(dǎo)，圓環(huán)形破壞面的抵抗矩W= 幾×(3r2o＋3r62＋83）。上式中，r是圓環(huán)內(nèi)徑，à是圓環(huán)寬度。破壞面抵抗矩W= T×(3r26+3r62+63）一T×（3×842×4十3×84×42＋43）= 88768mm3 =88.76810一6 m3風(fēng)荷載在破壞面上作用矩引起的應(yīng)力=M/W= 1466188.768×10一6）=16.5106pa =16.5 Mpa<215Mpa其中，215Mpa是Q235鋼的抗彎強度。<span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span></span></span></span></span></span></span></span></p><p style="text-indent:25px">接下來，我們聊聊為什么LED燈在關(guān)閉開關(guān)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(guān)，在關(guān)閉開關(guān)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(yīng)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(xí)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(guān)閉電源開關(guān)之后，即使火線進開關(guān)，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。LED顯示屏的高技術(shù)要求是未來的發(fā)展趨勢，LED顯示屏的高質(zhì)量要求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川投光燈批發(fā)廠家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781968994141/3260429.png"></div><p style="text-indent:25px">為什么LED燈在關(guān)閉開關(guān)之后，還是會亮呢?LED燈具現(xiàn)在已經(jīng)融入到我們的社會，由于功率小，亮度高，即達到了節(jié)能的目的，也方便了我們的生活，受到人們的喜愛，但是關(guān)燈之后，依然會亮卻讓人很是煩惱，接下來我們就聊聊這個問題。首先呢我們要知道LED燈的工作原理，他是由我們能看到的燈珠、驅(qū)動器(電源）構(gòu)成，燈珠呢就是有很多的發(fā)光燈珠，驅(qū)動器有很多種，一般都是單獨裝在一個塑料盒子里，如果我們看到就這樣區(qū)分就可以。我們看到就這樣區(qū)分就可以。垂直視角50°;的橢圓LED，戶內(nèi)顯示屏則選用水平垂直均為120°;江西專業(yè)投光燈led</p><p style="text-indent:25px">如存在不正確操作引起燈珠不亮，則重新焊接led燈珠一般即可解決。四川投光燈批發(fā)廠家</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，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1814.4四川投光燈批發(fā)廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3093695.html</p></div></div></div></div></div><div id="8mqsz78" class="page-right twoColRt"><div id="v8ubdp3" class="box01 margin10 clearfix"><h3><a 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