AmScope LED-144-YK 144-LED Microscope Ring Light with Adapter;

This 144-LED ring light kit for stereo microscopes includes a 144-LED ring light with 2.4" (61mm) inner diameter, a 110-220V black color power adapter and a ring adapter with 1-7/8" (48mm in diameter) thread. With variable intensity control, it provides cool, even, intense and focused shadow-free illumination. It is an ideal durable cool light source for microscopes. This kit comes with one year warranty against manufacturing defects. It is brand new in original box. Its retail value is $400. Features & Specifications : 144 bright white LED bulbs 100,000 hours of life Intense and focused shadow-free illumination Variable intensity control Inside diameter of the ring light: 2.4" (61mm) Outside diameter of the ring light: 4" (100mm) Power input: 110-240V, 50-60HZ, auto switching Fits up to 2.4" (61mm) mount rings Shipping Weight: less than 2 lbs Packing List : One 144-LED Ring Light One Black Color Control Box One Power Cable One 48mm Ring Adapter