AmScope LED-144S 144 LED Adjustable Microscope Compact Ring Light + Adapter<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Provides intense and focused shadow-free illumination </span></li><li><span class="a-list-item"> 2.4" (61mm) inside and 4" (100mm) overall outside diameters </span></li><li><span class="a-list-item"> Power input: 110-240V， 50-60HZ， auto switching </span></li><li><span class="a-list-item"> 1-7/8" (48 mm in diameter) ring adapter included </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41djq%2BKK2dL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51IZYnIzIcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41W%2B7Y4wrmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41RMZgcCXfL.jpg" noproxy>