Like new, used twice Dental Headlight, Portable LED Headlamp Surgical Medical Head Light Lamp, High Brightness Dentist Light with Rechargeable Battery Universal Clamp for Loupes Glasses (Black) High intensity>15000—30000Lux The power of the bulb:1 W The lifetime of the bulb:10000 hour Battery pack weight:100g Charge voltage:AC110V/220V/50-60Hz head lamp bead has a power of 3W, 5W automatic conversion, and the color temperature of the light is white light, all-aluminum outer casing.Universal Clips on Perfectly to most of binocular loupes and regular glasses Adjustable Brightness: Rotatable knob to control the brightness of the light.