1、Built-in LED lights, high brightness, soft light, can help you observe the structure of objects. 2、It is a great light source for human body microscope, monocular video microscope and other optical instruments. 3、The brightness of the light is adjustable from 0-100%, less heat, low power consumption, energy saving and environmental protection, and long service life. 4、Made of imported plastic shell materials, anti-aging and good flame retardancy. 5、It can provide 360 degree uniform illumination to the observed object with high definition. Condition: 100% Brand New Item Type: Microscope Ring Light Material: Plastic + Iron Female Thread: Approx. 27mm / 1.1in Inner Diameter: Approx. 46mm / 1.8in Light Source: LED Light Emitting Diode Maximum Output Power: 3.8W Working Distance: Approx. 40-160mm/1.57-6.3in Maximum Illumination: 30000LX-35000LX Color Temperature: 6500K-7000K Brightness Adjustment Range: 0-100% Adjustable Light Color: White Product Shell Color: Black Product Life:> 30000HRS Ambient Temperature: 20% - 80% Effective Light Distance: Approx. 75mm / 3.0in Effective Light Pathing: Approx. 30mm / 1.2in Weight: Approx. 323g / 11.4oz Power Box Size: Approx. 110x60x30mm / 4.3x2.4x1.2in 1 x LED Ring Light 1 x LED Adapter 1 x Power Line