【LED燈條功率(lv)】3528燈帶、5050燈帶一米多(duo)少瓦 LED燈條電壓限(xian)制

大家都(dou)知道正常(chang)情況(kuang)的LED燈(deng)(deng)帶(dai)電(dian)(dian)壓常(chang)規(gui)(gui)規(gui)(gui)格(ge)是(shi)12V和(he)24V，12V的LED燈(deng)(deng)帶(dai)是(shi)三顆LED為(wei)一(yi)組，24V的LED燈(deng)(deng)帶(dai)是(shi)6顆LED為(wei)一(yi)組。曾經有客戶要求降(jiang)低(di)(di)供電(dian)(dian)電(dian)(dian)壓，當(dang)然不是(shi)所有顏色、規(gui)(gui)格(ge)的都(dou)可(ke)以(yi)降(jiang)低(di)(di)電(dian)(dian)壓使用的，并且(qie)也不是(shi)可(ke)以(yi)無(wu)條件的降(jiang)低(di)(di)。為(wei)了(le)更明白的區分什么樣規(gui)(gui)格(ge)的LED燈(deng)(deng)帶(dai)電(dian)(dian)壓可(ke)以(yi)降(jiang)低(di)(di)，我們來看(kan)看(kan)下面5種常(chang)規(gui)(gui)顏色單顆LED的正常(chang)電(dian)(dian)壓：

1、紅色LED：1.8~2.2V

2、藍色LED：3.0~3.2V

3、黃色LED：1.8~2.0V

4、綠色LED：2.9~3.1V

5、白色LED：3.0~3.3V

市面上的標準直流電源(yuan)電壓(ya)規格有6V、9V、12V、18V、24V等，那么LED燈(deng)帶降壓(ya)的規格也必須與(yu)這些規格相符(fu)，否則電源(yuan)的匹配也是一個問題(ti)。

一、下面就以這幾種常規顏色的LED為例來說明3顆LED為一組的LED燈帶的最低電壓限制：

根據公式i(電(dian)(dian)(dian)(dian)流)=U(電(dian)(dian)(dian)(dian)壓)/R(電(dian)(dian)(dian)(dian)阻(zu))，電(dian)(dian)(dian)(dian)壓相(xiang)同時(shi)，電(dian)(dian)(dian)(dian)阻(zu)大(da)則(ze)(ze)電(dian)(dian)(dian)(dian)流小(xiao)(xiao)，電(dian)(dian)(dian)(dian)阻(zu)小(xiao)(xiao)則(ze)(ze)電(dian)(dian)(dian)(dian)流大(da)；電(dian)(dian)(dian)(dian)阻(zu)相(xiang)同時(shi)，電(dian)(dian)(dian)(dian)壓大(da)則(ze)(ze)電(dian)(dian)(dian)(dian)流大(da)，電(dian)(dian)(dian)(dian)壓小(xiao)(xiao)則(ze)(ze)電(dian)(dian)(dian)(dian)流小(xiao)(xiao)；電(dian)(dian)(dian)(dian)流相(xiang)同時(shi)，電(dian)(dian)(dian)(dian)阻(zu)大(da)則(ze)(ze)分配的電(dian)(dian)(dian)(dian)壓大(da)

1、白(bai)色LED：按最低驅動電(dian)(dian)壓計算：3*3.0=9V，如果(guo)LED燈帶(dai)的(de)供(gong)電(dian)(dian)電(dian)(dian)壓是9V，則沒有辦法再加限流電(dian)(dian)阻了(le)。如果(guo)其(qi)它組LED燈帶(dai)有損壞(huai)的(de)話，就會造成這(zhe)一(yi)組LED燈帶(dai)的(de)電(dian)(dian)流加大而燒(shao)壞(huai)LED。但是如果(guo)加了(le)限流電(dian)(dian)阻，就會低于LED的(de)最低驅動驅動電(dian)(dian)壓，會影響LED燈帶(dai)的(de)發光強度(du)和發光效果(guo)。因此，光虹白(bai)色LED燈帶(dai)的(de)最低電(dian)(dian)壓限制為12V。

2、紅(hong)色LED：按(an)(an)最低驅動電(dian)壓1.8V計算，3*1.8V=5.4V，則按(an)(an)常規(gui)電(dian)源(yuan)電(dian)壓規(gui)格來看(kan)，6V電(dian)壓就(jiu)可以(yi)了。6-5.4V=0.6V，還可以(yi)加(jia)30歐姆的限流電(dian)阻(zu)。故紅(hong)色LED燈帶的最低電(dian)壓限制(zhi)為6V。

3、藍色LED：與白(bai)色LED燈(deng)帶的(de)最低電(dian)壓限制是一樣的(de)，是12V電(dian)壓。

4、綠(lv)色LED：按最(zui)低驅動電(dian)壓2.9V計算，3*2.9V=8.7V，則按常規(gui)電(dian)源電(dian)壓規(gui)格來(lai)看，9V電(dian)壓還(huan)可以(yi)。9-8.7V=0.3V，還(huan)可以(yi)加15歐(ou)姆的限流電(dian)阻。故光虹綠(lv)色LED燈帶的最(zui)低電(dian)壓限制為(wei)9V。

5、黃色(se)LED：與光虹紅色(se)LED燈帶的最低(di)電壓(ya)限制(zhi)是(shi)一樣(yang)，都是(shi)6V。

LED燈帶什么顏色好>>

二、6顆LED為一組的LED燈帶的最低電壓限制：

根(gen)據(ju)公式(shi)i(電(dian)(dian)(dian)流(liu))=U(電(dian)(dian)(dian)壓(ya)(ya)(ya))/R(電(dian)(dian)(dian)阻),電(dian)(dian)(dian)壓(ya)(ya)(ya)相(xiang)同(tong)時(shi)，電(dian)(dian)(dian)阻大(da)(da)(da)則(ze)(ze)電(dian)(dian)(dian)流(liu)小，電(dian)(dian)(dian)阻小則(ze)(ze)電(dian)(dian)(dian)流(liu)大(da)(da)(da)；電(dian)(dian)(dian)阻相(xiang)同(tong)時(shi)，電(dian)(dian)(dian)壓(ya)(ya)(ya)大(da)(da)(da)則(ze)(ze)電(dian)(dian)(dian)流(liu)大(da)(da)(da)，電(dian)(dian)(dian)壓(ya)(ya)(ya)小則(ze)(ze)電(dian)(dian)(dian)流(liu)小；電(dian)(dian)(dian)流(liu)相(xiang)同(tong)時(shi)，電(dian)(dian)(dian)阻大(da)(da)(da)則(ze)(ze)分(fen)配的電(dian)(dian)(dian)壓(ya)(ya)(ya)大(da)(da)(da)

1、白色LED：按最低驅(qu)(qu)動電(dian)(dian)壓(ya)(ya)(ya)計算：6*3.0=18V，如果(guo)(guo)光虹LED燈(deng)(deng)帶的供電(dian)(dian)電(dian)(dian)壓(ya)(ya)(ya)是18V，則沒有(you)辦法再加(jia)限流(liu)電(dian)(dian)阻(zu)了。如果(guo)(guo)其(qi)它組LED燈(deng)(deng)帶有(you)損壞的話，就會造成這一組LED燈(deng)(deng)帶的電(dian)(dian)流(liu)加(jia)大而燒壞LED。但是如果(guo)(guo)加(jia)了限流(liu)電(dian)(dian)阻(zu)，就會低于LED的最低驅(qu)(qu)動驅(qu)(qu)動電(dian)(dian)壓(ya)(ya)(ya)，會影響LED燈(deng)(deng)帶的發光強度和發光效果(guo)(guo)。因(yin)此，白色LED燈(deng)(deng)帶的最低電(dian)(dian)壓(ya)(ya)(ya)限制為24V。

2、紅色LED：按(an)最低(di)驅動電(dian)壓(ya)1.8V計(ji)算，6*1.8V=10.8V，則按(an)常規(gui)電(dian)源(yuan)電(dian)壓(ya)規(gui)格(ge)來看(kan)，需要12V電(dian)壓(ya)。12-10.8V=1.2V，還(huan)可(ke)以(yi)加60歐姆的限流(liu)電(dian)阻。故(gu)紅色LED燈帶(dai)的最低(di)電(dian)壓(ya)限制為12V。

3、藍色LED：與光虹白色LED燈帶的(de)最低電壓限(xian)制是一樣的(de)，是24V電壓。

4、綠色LED：按最低驅動電(dian)壓(ya)(ya)2.9V計算，6*2.9V=17.4V，則按常(chang)規電(dian)源電(dian)壓(ya)(ya)規格(ge)來看，18V電(dian)壓(ya)(ya)還可以(yi)。18-17.4V=0.6V，還可以(yi)加30歐姆的(de)限流電(dian)阻。故綠色LED燈帶的(de)最低電(dian)壓(ya)(ya)限制18V。

5、黃色LED：與紅(hong)色LED燈帶的(de)最低電壓限(xian)制是一(yi)樣，都是12V。

三、LED燈帶功率

功率是(shi)能(neng)量的(de)傳輸(shu)率的(de)度量，在(zai)直(zhi)流(liu)(liu)電路中它是(shi)電壓V和(he)電流(liu)(liu)A的(de)乘(cheng)積；在(zai)交流(liu)(liu)系統里則要復雜的(de)多了。不管是(shi)高壓還(huan)是(shi)低壓led燈(deng)(deng)帶(dai)，它們都是(shi)將(jiang)交流(liu)(liu)轉化(hua)為直(zhi)流(liu)(liu)來進行工作(zuo)的(de)。 所以(yi)，led燈(deng)(deng)帶(dai)功率計算(suan)可以(yi)用： P=UI 每個(ge)廠家由于芯片不一(yi)樣(yang)，會(hui)導致led燈(deng)(deng)珠工作(zuo)電壓和(he)工作(zuo)電流(liu)(liu)不一(yi)樣(yang)。所以(yi)，市(shi)場上同(tong)樣(yang)一(yi)米led燈(deng)(deng)帶(dai)，它們的(de)功率會(hui)不盡相同(tong)。

3528燈帶一米多少瓦 5050燈帶一米多少瓦

LED燈帶12V一米的有多種功率，常見的5w到20w之間，例如： 3528led，每米30顆led，每米功率2.4w；每米60顆led，每米4.8w。 5050led ，每米30顆led，每米7.2w；每米60顆led ，每米14.4w。

LED燈帶安裝圖解>>