Imported LED cold light source is adopted, with the ultrathin optical lens. Digital means are adopted for stepless regulation of LED brightness. Light field size can be adjusted by the handle. The removable handle sheath can be disinfected. The service life of LED shadowless lamp is long(50,000h). Color temp can be adjusted in three steps. The imported switch power supply is adopted to control the voltage, making the work voltage permanently stable. The no welding titanium alloy arm, Imported spring arm make sure the lamp head adjusted easily and freely.