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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="97ipzfj" class="twoCol"><div id="4n2lsu2" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</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>?河南戶外投光燈具批發(fā) 歡迎來電上海先盛照明電器供應(yīng)</p><div id="177okri" class="leftbox clearfix"><h1>河南戶外投光燈具批發(fā) 歡迎來電上海先盛照明電器供應(yīng)</h1><div id="yceg7rw" class="proBig"><div id="qok22ik" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781652041016/5513893.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nr27nxj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781652041016/5513893.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bvmtfwd" 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>河南戶外投光燈具批發(fā),投光燈</p><p><span>***更新：</span>2021-01-18 05:07:11</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="foqxu2k" 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="pdvctul" class="page-proshow02"><p class="title">詳細說明</p><div id="ljf27dq" class="box"><p><p style="text-indent:25px">通過施加一個PWM信號來控制LED亮度的做法允許不改變彩色的情況下完成LED的調(diào)光。人們常說的真正彩色(TrueColor)PWM調(diào)光是利用-一個PWM信號來調(diào)節(jié)LED的亮度。調(diào)節(jié)LED亮度有三種常用方法:(1)使用SET電阻，在LED驅(qū)動控制IC引腳RSET兩端并聯(lián)不同的轉(zhuǎn)換電阻，使用一個直流電壓設(shè)置LED驅(qū)動控制IC引腳RSET的電流，從而改變LED的正向工作電流，達到調(diào)節(jié)ALED(2)采用PWM技術(shù)，河南戶外投光燈具批發(fā)，利用PWM控制信號，通過控制LED的正向工作電流的.占空比來調(diào)節(jié)AL ，河南戶外投光燈具批發(fā)，河南戶外投光燈具批發(fā).ED的發(fā)光亮度。<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></span></span></span></span></span></span></span></span>針對不同點間距和不同視距的顯示屏，應(yīng)在亮度、角度和價格上找到一個平衡點。河南戶外投光燈具批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南戶外投光燈具批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781652041016/5513893.png"></div><p style="text-indent:25px">理論上可以做到在目標區(qū)域內(nèi)完全均勻，這也能避免傳統(tǒng)光源“燈下亮"現(xiàn)象中的光浪費;―第三，色溫可選，這樣在不同場合的應(yīng)用中，也是提高效率、降低成本的一個重要途徑;―第四，技術(shù)進步空間依然很大。二、劣勢(影響路燈推廣應(yīng)用的因素)有:―當(dāng)前價格還太高，光通量低，當(dāng)前同等照度設(shè)計的LED光源價格大約相當(dāng)于傳統(tǒng)光源的4倍(不過在路燈產(chǎn)品中，光源部分占總成本并不高，所以在工程安裝中的成本提高比例也不會太高，應(yīng)用的空間還是比較大的)，在民用中難以承受。<span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span></span>河北戶外投光燈具檢查是否因led燈珠引腳虛焊，焊接時溫度過高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南戶外投光燈具批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781613906250/8543994.png"></div><p style="text-indent:25px">色溫范圍廣，幾乎可以提供任意色溫，而且還可以提供紅綠藍以至任何一種顏色的燈光。顯指高，白熾燈的顯色指數(shù)為95，熒光燈為65-80，而LED日光燈則可以>80。沒有紫外線輻射。非玻璃制品，不易破損，耐沖擊，耐振動。10.外置隔離電源的LED日光燈，在燈管兩端都接觸不到市電高壓，只有低于36V的直流安全電壓，不存在觸電的危險，完全是一種安全的燈具。目前LED日光燈***的缺點就是價格高。不過盡管目前LED日光燈的價格大約是熒光燈的十倍左右，如果聯(lián)系到它的壽命、節(jié)電和無污染來看，仍然是合算的。因為如果和壽命為5,000小時的熒光燈相比，那么壽命為5萬小時的LED日光燈就已經(jīng)值得.</p><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)對負載的要求。一般70瓦以下的用申器，沒有強制性指標。不過由于黑區(qū)面積減少，會降低對比度;相反。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南戶外投光燈具批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781071572266/5060107.png"></div><p style="text-indent:25px">若抗風(fēng)系數(shù)選定為27m/s（相當(dāng)于十級臺風(fēng)），根據(jù)非粘性流體力學(xué)，電池組件承受的風(fēng)壓只有365Pa。所以，組件本身是完全可以承受27m/s的風(fēng)速而不至于損壞的。所以，設(shè)計中關(guān)鍵要考慮的是電池組件支架與燈桿的連接。在本套路燈系統(tǒng)的設(shè)計中電池組件支架與燈桿的連接設(shè)計使用螺栓桿固定連接。(2)路燈燈桿的抗風(fēng)設(shè)計路燈的參數(shù)如下:電池板傾角A = 16d燈桿高度= 5n設(shè)計選取燈桿底部焊縫寬度à=4mm燈桿底部外徑= 168mn如圖3，焊縫所在面即燈桿破壞面。LED是決定整屏光學(xué)顯示性能的主體，直接影響觀眾對顯示屏的評價;河南戶外投光燈具批發(fā)</p><p style="text-indent:25px">看LED燈帶表面的清潔度。如果采用SMT工藝生產(chǎn)的LED燈帶，其表面的清潔度非常好，看不到什么雜質(zhì)和污漬。河南戶外投光燈具批發(fā)</p><p style="text-indent:25px">隨著城鎮(zhèn)化與消費升級的飛速發(fā)展，老百姓們的生活水平不斷提高，居民對于城市質(zhì)量的要求也在不斷提升，城市照明工業(yè)行業(yè)與城市經(jīng)濟、文化、自然因素密切相關(guān)，對塑造城市整體形象有著至關(guān)重要的作用。在智能家居領(lǐng)域，照明電器、五金交電、勞防用品、機電設(shè)備批發(fā)零售；照明電器設(shè)計、安裝。優(yōu)勢明顯，主要體現(xiàn)為操作方便、節(jié)能、安全、降低成本等幾個方面，其未來前景十分廣闊。預(yù)測2022年中國照明電器、五金交電、勞防用品、機電設(shè)備批發(fā)零售；照明電器設(shè)計、安裝。市場規(guī)模突破400億元。未來，隨著照明節(jié)能技術(shù)的不斷發(fā)展，傳統(tǒng)照明有限責(zé)任公司（自然）市場的主角正由白熾燈轉(zhuǎn)換為LED，以及物聯(lián)網(wǎng)、下一代互聯(lián)網(wǎng)、云計算等新一代信息技術(shù)的廣泛應(yīng)用，智慧城市已成為必然趨勢。隨著技術(shù)、產(chǎn)品的成熟和相關(guān)概念的普及，預(yù)計2020年全球銷售可達134億美元。工業(yè)及商業(yè)為銷售極大的應(yīng)用場域，因為數(shù)字化的特征，銷售將為這兩個領(lǐng)域帶來更多新的商業(yè)模式和價值增長點。河南戶外投光燈具批發(fā)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2896377.html</p></div></div></div></div></div><div id="pkrtub7" class="page-right twoColRt"><div id="3x9v7ah" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mq7lfr2" class="recomPic likePro"><a 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