... a rechargeable battery, Work time:10 hours LED headlamp with magnifier As to the LED headlamp, the facular is ... if it is out of power, it can link with the electricity for using.It can be compatible for ... for doctors. In a word, this kind of headlight with magnifier is one of our popular products.It is ... the world. Most of our customers are satisfied with our quality, price and service.Please have a try! ...