5W Portable LED headlight with small size and light weight, it is suitable for all kinds of surgical operation and anywhere without light or lack of light Using rechargeable Li-ion battery, long working time, high brightness and clear circle Ophthalmology, Otorhinolaryngology, also can be used for Electronic and Industry. It is used for reduce eye ,neck and shoulder fatigue, which is caused by long time lower head work Loupes is produced by high quality optical glass material with muil-coating, It can supply large field of views and deep depth of view.