This head light is designed for the glasses wearers and magnifiers users. Moving the light head can get the suitable illumination angle. ... suitable for Outpatient Service, Stomatology, ENT. Standard Configuration: 1pc light head, 1pc clip, 1pc power supply box, 1pc charger, ... features: Universal power supply system Small light loss by single lens to refract light, light weight Long lamp life, at least ...