How should otolaryngology choose a medical headlamp?

Semiconductor lighting has been widely used in various fields because of its high efficiency, energy saving, stability, environmental protection and long service life. With the continuous development of LED technology and the improvement of light source quality, led gradually replaces the traditional lighting source in the medical field (traditional light sources such as incandescent lamp or halogen lamp have shortcomings such as heavy weight, complex structure, easy damage, high conduction loss, short service life and complex maintenance), such as surgical shadowless lamp, medical headlamp, light curing lamp, fluorescent micro lamp, etc.