Product infos: 3W LED lighting, high illumination. The light head comprises optical lens and grating. When the battery is used up, it can continue to work while connecting to external power supply. It is suitable for Surgery Room, Stomatology, ENT. Standard Configuration: 1pc light head, 1pc head band, 1pc power supply box, 1pc charger, 1pc carton package Optional Configuration: aluminium alloy ...