MICROSCOPE bottom light source: Package includes 1 circular illuminator and 1 power adapter. Integrated design, easy to use. Good durability: Made of high-quality materials, it has good durability and stability after long-term use. Design: Integrated design, compact and aesthetically pleasing, easy to install, saving workspace, LED circular lights provide cool, strong focused, shadow free lighting. Usage parameters: light source outer diameter 135mm, illumination diameter 130mm, thickness 25mm, positive white light, power 6-10w, brightness adjustable. Application scope: It can be widely used in stereoscopic microscopes. Laboratory microscope accessories, adjustable brightness LED circular bottom light, binocular three eye stereoscopic microscope light source to eliminate shadow reflection. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC110V Color: White Material: plastic Package Contents: 1 x Microscope Ring Light Only the above package content, other products are not included. Note: Light reflection 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.