Ceiling LED Cold Light Operation Light Aluminum Alloy Material The rotating arm is made of aluminum alloy material, good anti-corrosion performance. It is formed at one time, without welding spot. No Drift No matter new improved HEALTH spring arm or imported ONDAL spring arm, there is no drift under long-term use. Energy saving The Osram bulbs imported from Germany are used for ultra-long service life, which can reach more than 50,000 hours. Safety Gurantee With wide voltage working characteristics, it works stably in the range of AC110V-250V, and has strong anti-interference ability. Great User Experience Technical Specifications Project Separately set up the light source for endoscopic illumination, which can be used for endoscopic surgery or general illumination. Color Temperature(k) The color temperature, lighting intensity and color rendering index of the light can be changed synchronously through the LCD control panel. Color Rendering Index(Ra) Ratio of Radiation Illumination(mW/m 2·lux) Worry-free Maintenance Diameter of Light Spot(mm) Lighting Depth(mm) Plug-in connector design for joint connection point and integrated design of control panel. humanized design, easy to install and maintain. Shadowless Rate(%)