Detail 2X 48 Diode Industrial Microscopic Camera Light Source Ring Light Lamp Adjustable Brightness USB InterfaceSMD LED Ring Microscope High Brightness Illumination, Long Lifespan, Low Heat, Low Temperature, Soft Natural Light Without Flash, Long Lifespan, Energy Saving, Compact Appearance, Easy Installation. LED Microscope Ring Light illumination brightness can be adjusted, there is stereo microscope, video monocular microscopes and other optical instruments with excellent source. Brightness Adjustable Diode Microscope Lamp Material: ABS Maximum Efficiency: 3-5W Best Performing Distance: 20mm-160mm Power Consumption: AC100-AC240V, 50-60HZ Installation Interface: 58-65mm Color: White Applications: Microscope Lighting, Machine Viewing System Lighting, Eco-Photographic Lighting, Photographic Lighting, Instrument Lighting, etc. USB Interface Package Content: 2 * Ring Light Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.