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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>河北批發(fā)投光燈批發(fā)廠(chǎng)家,投光燈</p><p><span>***更新：</span>2020-10-31 04:12:57</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="k89w2sf" 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(huà): </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(hào)</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ktvsjaz" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="thtvmod" class="box"><p><p style="text-indent:25px">在1999年開(kāi)始引入了可以在1瓦電力輸入下連續(xù)使用的商業(yè)品級(jí)LED。這些LED都以特大的半導(dǎo)體芯片來(lái)處理高電能輸入的問(wèn)題，而那半導(dǎo)體芯片都是固定在金屬鐵片上，以助散熱。在2002年，在市場(chǎng)上開(kāi)始有5瓦的LED的出現(xiàn)，而其效率大約是每瓦18至22流明。2003年九月，Cree，河北批發(fā)投光燈批發(fā)廠(chǎng)家,Inc. 公司展示了其新款的藍(lán)光LED，在20毫安下達(dá)到35%的照明效率。他們亦制造了一款達(dá)65流明每瓦的白光LED商品，這是當(dāng)時(shí)市場(chǎng)上zui光的白光LED。在2005年他們展示了一款白光LED原型,在350毫安工作環(huán)境下，河北批發(fā)投光燈批發(fā)廠(chǎng)家，創(chuàng)下了每瓦70流明的記錄性效率。今<span style="display:none;"></span>白光LED原型,在350毫安工作環(huán)境下，河北批發(fā)投光燈批發(fā)廠(chǎng)家，創(chuàng)下了每瓦70流明的記錄性效率。尺寸：LED器件的尺寸影響LED顯示屏的像素點(diǎn)距離，即分辨率。河北批發(fā)投光燈批發(fā)廠(chǎng)家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北批發(fā)投光燈批發(fā)廠(chǎng)家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781613906250/8543994.png"></div><p style="text-indent:25px">我們經(jīng)常會(huì)碰到LED不亮的情況，封裝企業(yè)、應(yīng)用企業(yè)以及使用的單位和個(gè)人，都有可能碰到，這就是行業(yè)內(nèi)的人說(shuō)的死燈現(xiàn)象。究其原因不外是兩種情況:其一，LED的漏電流過(guò)大造成PN結(jié)失效，使LED燈點(diǎn)不亮，這種情況一般不會(huì)影響其它的LED燈的工作。其二，LED燈的內(nèi)部連接引線(xiàn)斷開(kāi)，造成LED無(wú)電流通過(guò)而產(chǎn)生死燈，這種情況會(huì)影響其它的LED燈的正常工作，原因是由于LED燈工作電壓低(紅黃橙﹐LED工作電壓1.8V-2.2V,藍(lán)綠白LED工作電壓2.8-3.2V）。四川投光燈報(bào)價(jià)LED燈珠對(duì)LED顯示屏的影響有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北批發(fā)投光燈批發(fā)廠(chǎng)家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781212353516/4466745.png"></div><p style="text-indent:25px">LED日光燈優(yōu)缺點(diǎn)點(diǎn)評(píng) zui近以來(lái)，led日光燈成為zui早進(jìn)入室內(nèi)的LED燈具之一，因?yàn)樗鄬?duì)于熒光燈來(lái)說(shuō)具有很多優(yōu)點(diǎn)。一．優(yōu)點(diǎn) 相對(duì)于熒光燈來(lái)說(shuō)，led日光燈具有**優(yōu)點(diǎn):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(huì)不斷提升。二者之差現(xiàn)在已經(jīng)將近一倍。而以后有可能達(dá)到3倍以上。2.燈具效率高:燈具的效率主要是指有效光效，因?yàn)闊晒鉄羰?60</p><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(jìn)去。尤其對(duì)T6/T8燈管，幾乎不可能的，所以隔離的一般只能做到10W,超過(guò)10W的很少，并且價(jià)格很貴。所以，隔離的性?xún)r(jià)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(shí)際上，非隔離的安全措施做好了，是不存在問(wèn)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(wú)功功率在電網(wǎng)中相互轉(zhuǎn)化，用戶(hù)的電表不會(huì)計(jì)量無(wú)功功率的，對(duì)用戶(hù)的電表沒(méi)任何影響，只是供電局收不到用戶(hù)無(wú)功功率的錢(qián)。LED尺寸減小，減少了顯示面積，顆粒感增多，黑區(qū)面積增大，增加了對(duì)比度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北批發(fā)投光燈批發(fā)廠(chǎng)家,投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781175878906/6687908.png"></div><p style="text-indent:25px">在一些24小時(shí)連續(xù)工作的場(chǎng)地，例如地下停車(chē)場(chǎng)、24小時(shí)加班生產(chǎn)的工廠(chǎng)等地方。節(jié)電也是十分重要的。如上所述，- -根T8的LED日光燈大約可以節(jié)省20瓦電，一年下來(lái)就可以節(jié)省20x365x24/1000=175.2度電。假如以每度電0. 7元計(jì)算，那么一年下來(lái)，可以節(jié)省電費(fèi)122.64元，兩年下來(lái)，就可以節(jié)省出這根LED日光燈的成本。以后所節(jié)省的電費(fèi)就成為純收益了。所以現(xiàn)在國(guó)外有一種稱(chēng)之為EMC (能源管理合同Energy ManagementContract)作法。就是由一家財(cái)團(tuán)或銀行出資。替一個(gè)地下停車(chē)場(chǎng)或商場(chǎng)**安裝LED日光燈，但是要向業(yè)主收取所有節(jié)省下來(lái)的電費(fèi)，協(xié)議有效期可能為5年。只要2年以后，就可以回收所有投資，第三年開(kāi)始，所有節(jié)省下來(lái)的電費(fèi)就變成是純收益了。這是一個(gè)十分有利的投資項(xiàng)目。國(guó)內(nèi)也開(kāi)始有人這樣做了。更何況按照Haitz定律，LED的價(jià)格每十年將降低十倍!不過(guò)由于黑區(qū)面積減少，會(huì)降低對(duì)比度;相反。甘肅飛利浦led投光燈具批發(fā)</p><p style="text-indent:25px">LED亮度越高，使用電流的余量越大，對(duì)節(jié)省耗電、保持LED穩(wěn)定有好處。河北批發(fā)投光燈批發(fā)廠(chǎng)家</p><p style="text-indent:25px">頂多影響接觸電阻（當(dāng)然更進(jìn)一步來(lái)說(shuō)還影響到了是否容易被氧化)，所以不再更詳細(xì)地討論。關(guān)于連接器的接觸壓力，連接器靠的是孔接觸件的彈力來(lái)給針接觸件一定的壓力的。一般壓力越大接觸得也越好。當(dāng)然，一般小而又薄的孔接觸件是不太可能提供特大的壓力的。而且如果這個(gè)孔接觸件本身的彈性不好，頂多影響接觸電阻（當(dāng)然更進(jìn)一步來(lái)說(shuō)還影響到了是否容易被氧化)，所以不再更詳細(xì)地討論。關(guān)于連接器的接觸壓力，連接器靠的是孔接觸件的彈力來(lái)給針接觸件一定的壓力的。一般壓力越大接觸得也越好。當(dāng)然，一般小而又薄的孔接觸件是不太可能提供特大的壓力的。而且如果這個(gè)孔接觸件本身的彈性不好河北批發(fā)投光燈批發(fā)廠(chǎng)家</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)，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。上海先盛照明作為照明電器、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(jì)、安裝。的企業(yè)之一，為客戶(hù)提供良好的投光燈，三防燈，筒射燈，燈管。上海先盛照明繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。上海先盛照明始終關(guān)注照明工業(yè)市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶(hù)的成長(zhǎng)共贏。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1781703.html</p></div></div></div></div></div><div id="gfmeb7n" class="page-right twoColRt"><div id="8la8zwd" class="box01 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