Mobile operating Light User-friendly LCD Touchscreen Control Panel The color temperature, lighting intensity, color rendering index and endo mode can be changed synchronously through the LCD control panel. High Display LED Bulbs The high display bulb increases the sharp comparison between the blood and other tissues and organs of the human body, making the doctor vision clearer. Battery Back-up System Fast charging and long use time. In case of power failure, it can support 4 hours of normal use. Model Lightning Intensity(lux) Color Temperature(k) Color Rendering Index(Ra) 2 Diameter of Light Spot(mm) Illumination Depth(mm) Input Connected Load Light Source（pcs） LED Life Span(hrs) 72* LED Bulbs with lens