The lamp beads is close concentrated and more concentrated, and the color temperature is within the ranges of 10000-12000 K, ensuring high brightness and high uniformity lighting effect. USB interfaces, easily power supply and worryfree lighting. This adjustable LED light offer multiple levels brightness setting, allowing users to customize for optimally observation, enhancing research accuracy. For a variety of microscope models: commonly used in most microscopes in the market, with a maximumly apertures of 63mm. 144 lamp beads designs: bright enough, close to white lights. 144 white LED lamp beads is used in this rings. Color: As Shown Material: plastic Package Contents: 1x microscope LED light source 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.