串连的会不会坏一个就都不亮？
<div class="quote"><b>以下是引用<i>唐伯虎点蚊香</i>在2006-5-27 2:37:23的发言：</b><br/>串连的会不会坏一个就都不亮？</div><p></p><p>不会都不亮，</p><p>用3棵LED灯芯加一个电阻串联一组，不是全部串联在一起，</p><p>N组在连接在一起，就是要坏也是3棵不亮，</p><p>一般LED灯芯加电阻不得遭处，除非短路。</p>
[此贴子已经被作者于2006-5-27 4:52:50编辑过]
<p>在黑暗下用一组3棵LED串联在一起点亮的效果（6V）</p><p>报子和照片看的很清楚</p><p><img src="attachments/dvbbs/2006-5/20065275135974179.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-5/20065275135974179.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-5/20065275215693436.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-5/20065275215693436.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-5/20065275222787961.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-5/20065275222787961.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p><p>刚才是3棵平光效果</p><p>现在是一棵聚光效果 （很多手电筒就用的这种聚光LED灯芯）</p><p> <img src="attachments/dvbbs/2006-5/2006527530260977.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-5/2006527530260977.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p>
[此贴子已经被作者于2006-5-27 5:32:24编辑过]
<p>比日光灯怎样!?</p>
<div class="quote"><b>以下是引用<i>62</i>在2006-5-27 9:26:06的发言：</b><br/><p>比日光灯怎样!?</p></div><p>LED和日光灯是两个概念</p>
亮度亮度怎么样!
图小看不清!
<div class="quote"><b>以下是引用<i>62</i>在2006-5-27 16:14:15的发言：</b><br/>图小看不清!</div><p>今天装在车上效果非常好， </p><p>我用30万像素手机照的效果，不是很清晰， </p><p>但是能看出效果。 </p><p> </p><img src="attachments/dvbbs/2006-5/200652720585295154.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-5/200652720585295154.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/>
不错！什么时候帮偶也做个！
不错,过两天俺也整个!