Features 1、Adjustable Brightness: The brightness of this LED circle light is adjustable, allowing for customizable illumination, shifting between 20 to 100 percent linear brightness control, enhancing the visibility of your microscope's view. 2、Bright White Light: The circle lamp features 72 LED light beads for maximum illumination. The light color temperature is at a pleasant 6500K white light, bright and clean, not causing eye fatigue during long periods of usage. 3、Sturdy Construction: Constructed from high strength plastic and metal, this circle light source provides excellent durability and stability, ensuring the lamp's longevity of over 100,000 hours. 4、Compact and Easy Installation: With inner diameter measurement of 50mm and outer diameter of 80mm, the microscope lamp source ensures an easy installation process and a excellent fit for any compatible stereo microscope. 5、Ideal Replacement: The adjustable microscope led circle light can be an ideal replacement choice for damaged or old microscope parts, widely applicable for various microscope types, enhancing the performance of your device. Specification Item Type: Microscope LED Circle Light Input Voltage: 5V2A LED Lifespan: >100,000 Hours Light Color: White 6500K Brightness Adjustment: 20%-Full Linear Dimming Light Beads: 72 LED Lights Switch: On/Off Power Switch Connector Size: Approx. Inner Diameter: 50mm / 2in, Outer Diameter: 80mm / 3.1in Package List 1 x Microscope LED Circle Light 1 x Connecting Cable