... hours (highest in the second level output)-enough,Light Head Surface Temperature : 45 degree centigrade (highest in the ... 11g (including mount,not including wire,lightweight),Light Head Diameter: 1.9cm, Light Head Length : 2.1cm(very small size),Battery: ... for all of theworld power supply),Battery Charge Time: 90 minutes for 90% charge(very quick), Dental led head light , head lamp, Surgical head lamp ...