... , circlet components, power components and LED control system components.The product is applicable to medical examination of ear, nose, dental, ... 2.Characteristics:Using 3Whigh power white light LED as medical lighting, the service life of LED is up to 20,000 hours, ... 0.3KgBattery: 7 hoursDimensions: 240mmx165mmx150mmNet Weight:410gGross Weight: 680g Medical 5W led headlight with battery for examining