1. microscope ring light 2. 144 PCS LED Bulbs 3. Brightness 20000Lux (on WD 100mm) 4. Brightness Adjustable 5. OEM Power supply: AC 90V-265V 50/60HZOut put: DC 12VPower Consumption: 4.5WQuantity of LED bulbs: 144PCSBrightness; above20000Lux (on working distances 100mm)Adjustable range of brightness : 0~100%Diameter: I.D. Φ61mm , O.D. Φ98mmColor-Temperature:6400K(customize)LED Available color: white, red, green, blue.Working distance:40-250mmElectricity Plug:according to requestWarranty time: 1 year

YK-S144T microscope LED ring light