Ring SMD LED microscope lighting with high brightness, , low heat, low temperature, soft without flash, , energy saving, compact appearance, easy installation. LED microscope ring light lighting brightness can be adjusted, is stereo microscope, monocular video microscopes and other optical instruments with the perfect source. Brightness Adjustable LED Microscope Lamp Material: ABS Max output: 3-5W Best Working Distance: 20mm-160mm Power input: AC100-AC240V, 50-60HZ Installation interface:58-65mm color: white Applications: microscope illumination, machine vision system lighting, Eco-photography lighting, photography lighting, instrument lighting,etc. USB interface Package Contents:2 * Ring Lamp light Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.