Dentist Dental Surgical Medical Binocular Loupes 3.5X 420mm Optical Glass Loupe + LED Head Light Lamp <br><br>Specification: <br>Magnification: 3.5X<br>Working distance: 420mm <br>Depth of field: 80mm <br>Field of View: 60mm<br>Weight: 52g<br>Frames: Ni-alloy or Titanium<br><br>Specification of LED headlight: <br>Portable LED headlight<br>High intensity&gt;15000—30000Lux<br>Continuous run-time:&gt;5 hour<br>The power of the LED bulb:1 W<br>The lifetime of the bulb:10000 hour<br>All loupes are optional<br>Very small volume and weight<br>Battery pack weight:100g<br>Charge voltage:AC110V/240V/50-60Hz<br>Using the rechargeable lithium battery， light weight， longevity and the more comfortable carry， it is suitable for all kinds of surgical operation
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