Bistos Precision LED Surgical Medical Head LampHead lamp for use during examinations or operations. Powerful precise led illumination to allow for clear view of hard to reach and otherwise difficult to see areas. Supplied with a comfortable and adjustable head band to suit any user. Operated with a simple on off switch and contains an internal rechargeable battery. The head lamp takes 4 hours to fully charge with a continuous run time of 4 6 hours.