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歡迎咨詢上海先盛照明電器供應</p><div id="vkxpwyv" class="leftbox clearfix"><h1>河北戶外投光燈批發(fā) 歡迎咨詢上海先盛照明電器供應</h1><div id="edvsumo" class="proBig"><div id="imewykh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781806748047/1466494.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8cz77wi" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781806748047/1466494.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pe2q9ks" 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>產品關鍵詞：</span>河北戶外投光燈批發(fā),投光燈</p><p><span>***更新：</span>2020-11-08 06:14:16</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="tnfhtax" 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="dxuh2ta" class="page-proshow02"><p class="title">詳細說明</p><div id="rlikmtv" class="box"><p><p style="text-indent:25px">我們要為太陽能電池組件選擇一個zui佳傾角。關于太陽能電池組件zui佳傾角問題的探討，近年來在一些學術刊物上出現(xiàn)得不少。本次路燈使用地區(qū)為廣州地區(qū)，依據(jù)本次設計參考相關文獻中的資料[1]，選定太陽能電池組件支架傾角為160。2.3.2抗風設計在太陽能路燈系統(tǒng)中，結構上一個需要非常重視的問題就是抗風設計。抗風設計主要分為兩大塊，河北戶外投光燈批發(fā)，河北戶外投光燈批發(fā)，一為電池組件支架的抗風設計，河北戶外投光燈批發(fā)，二為燈桿的抗風設計。下面按以上兩塊分別做分析。(1)太陽能電池組件支架的抗風設計依據(jù)電池組件廠家的技術參數(shù)資料，太陽能電池組件可以承受的迎風壓強為2700Pa。LED燈珠對LED顯示屏的影響有哪些？河北戶外投光燈批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北戶外投光燈批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781806748047/1466494.png"></div><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;如果是裝在燈管內就會產生一個很高的溫度，再加.上我們LED的一個光效比所散發(fā)熱.量，就會疊加產生更高的溫度。而我們的電源內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河南白光投光燈批發(fā)主要是由于LED器件的亮度衰減造成的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北戶外投光燈批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781175878906/6687908.png"></div><p> 投光燈是指定被照面上的照度高于周圍環(huán)境的燈具。又稱聚光燈。通常，它能夠瞄準任何方向，并具備不受氣候條件影響的結構。主要用于大面積作業(yè)場礦、建筑物輪廓、體育場、立交橋、紀念碑、公園和花壇等。因此，幾乎所有室外使用的大面積照明燈具都可看作投光燈。投光燈的出射光束角度有寬有窄，變化范圍在0°～180°之間，其中光束特別窄的稱為探照燈。投光燈[1]由光學部件、機械部件和電氣部件3部分組成。光學部件主要是反射器和限制光線投光燈的遮光格片。機械部件主要是外殼，以及固定和調整光源位置的調焦機構，固定燈具的支架、基座和帶有角度指示的調整燈具光束投射方向的零件。對絕大部分為密閉式的投光燈，機械部件還有保護玻璃及各種密封圈。根據(jù)使用環(huán)境的需要，有的還帶有金屬網(wǎng)罩。性能良好的投光燈還配有空氣過濾器。電氣部件主要是鎮(zhèn)流器、電容器、觸發(fā)器（根據(jù)光源需要而設）等。 </p><p style="text-indent:25px">比紅光波長長的光為紅外光?，F(xiàn)在已有紅外、紅、黃、綠及藍光發(fā)光二極管，但其中藍光二極管成本、價格很高, 使用不普遍。LED的調光控制傳統(tǒng)上，LED的調光是利用一個DC信號或濾液PWM對LED中的正向電流進行調節(jié)來完成的。減小LED電流將起到調節(jié)LED光輸出強度的作用，然而，正向電流的變化也會改變LED的彩色,因為LED的色度會隨著電流的變化而變化。許多應用(例如汽車和LCD TV背光照明)都不能允許LED發(fā)生任何的色彩漂移。在這些應用中，由于周圍環(huán)境中存在不同的光線變化，而且人眼對于光強的微小變化都很敏感，因此寬范圍調光是必需的。首先我們可以先檢查一下，led 頂燈是否因供電電源部分的原因而沒有正常工作導致燈泡不亮。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北戶外投光燈批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781717548828/354470.png"></div><p style="text-indent:25px">現(xiàn)在設計占燈具成本的20%左右，有些高。隨著技術發(fā)展電源大概在5-10%zui為合理。 LED成本高，其實是相對目前其他光源來說，作為20世紀90年代才發(fā)明藍光LED,從而導致LED白光得以實現(xiàn)的LED行業(yè)而言，其實現(xiàn)在的成本并不高。尤其是LED環(huán)保、節(jié)能、不含汞，而且每季度LED燈具的價格都在往下滑，相信一定可以在較短的時間內達到人們能夠接受的水平。編輯本段LED驅動電源九大性能特點要求根據(jù)電網(wǎng)的用電規(guī)則和LED驅動電源的特性要求，在選擇和設計LED驅動電源時要考慮到以下九大<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>LED在顯示屏整體成本中所占比例比較大，從30%至70%不等。甘肅專業(yè)投光燈批發(fā)廠家</p><p style="text-indent:25px">目前戶外顯示屏大多選用水平視角100°;河北戶外投光燈批發(fā)</p><p style="text-indent:25px">LED手電簡發(fā)光二極管是由III-IV族化合物，如GaAs (砷化鎵)、GaP (磷化鎵)、<span style="display:none;"></span>GaAsP<span style="display:none;"></span>(磷砷化鎵)等半導體制成的，其**是PN結。因此它具有一般P-N結的I-N特性，即正向導通，反向截止、擊穿特性。此外，在- -定條件下，它還具有發(fā)光特性。在正向電壓下，電子由N區(qū)注入P區(qū)，空穴由P區(qū)注入N區(qū)。進入對方區(qū)域的少數(shù)載流子(少子)一部分與多數(shù)載流子(多子)復合而發(fā)光，假設發(fā)光是在 P區(qū)中發(fā)生的，那么注入的電子與價帶空穴直接復合而發(fā)光，或者先被發(fā)光中心捕獲后，再與空穴復合發(fā)光。河北戶外投光燈批發(fā)</p><p style="text-indent:25px">上海先盛照明電器有限公司是一家照明電器、五金交電、勞防用品、機電設備批發(fā)零售；照明電器設計、安裝。的公司，是一家集研發(fā)、設計、生產和銷售為一體的專業(yè)化公司。上海先盛照明擁有一支經(jīng)驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供投光燈，三防燈，筒射燈，燈管。上海先盛照明始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。上海先盛照明創(chuàng)始人顧勇軍，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1899041.html</p></div></div></div></div></div><div id="wqnk2dk" class="page-right twoColRt"><div id="bvsp8xz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="y7dx88e" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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