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<div class="quote"><b>以下是引用<i>马减爵</i>在2007-07-14 18:46:40的发言:</b><br /><p></p><p> </p><p>按道理来说应该就是1AA差别明显,满功率反而会差别不大</p><p> </p><p>因为CREE划分LED等级是在350ma电流条件下,按照亮度划分的</p></div><p></p><p>可是在750ma下LED的亮度差别比350ma下大,不过差的也不太多,也许这两种差距肉眼分的不清楚。。。</p><p>A CREE XR-E P4 bin, takes 350mA to produce 80.6-87.4 Lumens<br />A CREE XR-E Q2 bin, takes 350mA to produce 87.4-93.9 Lumens<br /><br />A CREE XR-E P4 bin, takes 700mA to produce 130.6-141.6 Lumens<br />A CREE XR-E Q2 bin, takes 700mA to produce 141.6-152.1 Lumens</p> |
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