Feature: 1. 144pcs LED lamp beads provide luminance from 30,000lx to 40,000lx, delivering intense and focused shadow-free illumination for clear observation. 2. Provides optimal lighting for microscopes or cameras when additional light sources are needed or ambient light is insufficient. Ideal for inspection and quality control, helping to identify surface defects and improve visibility. 3. Can be used as a light source for cameras to assist focus in low-light environments. 4. Adjustable brightness from 0 to 100 percent for easy control of LED light intensity. 5. Well-constructed ring light with a long service life of up to 100,000 hours. Compatible with lens diameters ranging from 30mm to 63mm. Specification: Material: Plastic Color: Black Output: 12V DC Power: < 4W Luminance: 3000lx ~ 40,000lx (within a distance of 80mm) Connector Size: 61mm Variable Brightness Range: 0 to 100 percent Effective Distance: 50~250mm Clear Aperture: 60.5mm Item Weight: 250g / 8.81oz Item Size: 9.3*4.5cm / 3.66*1.77in Package List: 1 * Ring Light 1 * Power Supply