Asinfter 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:1*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.