It can be used for cameras to focus while hunting or viewing in dark places or areas. 144 LED ring light for stereo microscope Specially designed LED light for stereo microscope Number of LEDs: 144 pcs (144 LED lights) Brightness: Adjustable from 0-100% with high brightness output Anti-static performance No fluorescent lamp flicker; light color temperature remains consistent at different angles Composed mainly of power cord with wide voltage regulator power supply, LED, and high-grade plastic casting shell Power supply design with built-in protection functions LED light provides high brightness and uniform illumination Light color: 6000 K (close to sunlight) Input voltage: AC 95240V, 50/60Hz Power consumption: less than 4W Maximum power: less than 3W Brightness: 30,00040,000 lux Adjustable brightness control Strong and focused illumination with shadowless effect Brightness: 20,000 lux at a height of 80 mm Connection size: fits diameter of 63.5 mm or less Working distance: 50250 mm Illumination adjustment: 0100% Shell material: Plastic Lamp shell color: Black Operating ambient temperature: -40C to 45C Package contents: 1 x 144-LED light 1 x adapter Only the above package content; other products are not included Note: Lighting and different displays may cause slight color variations between the item in the picture and the actual item. Measurement error allowance: +/- 13 cm