Binocular Loupe, Professional Magnifying Glasses 3.5 X 420mm, Magnifying Glass with 5W Portable LED HeadlightFeatures:1. Wide field of view and generous depth of field with high enough power for daily work.2. It has a specially coated lens that eliminates light reflection, minimizing the interruption of your work.3. The unique design of this lens allows it to transmit an optimal amount of light to the eyes to produce sharper, clearer and brighter images with incredible depth of field, thus reducing eye fatigue.4. 3.5x magnification power.Specific:LED bulb power: 3WHigh intensity: 15000-30000 LuxContinuous autonomy: 5 hoursBulb: 10000 hoursInput voltage: AC100-240V / 50-60HZPackage List:1 main glass1 practical protective carrying case1 cleaning cloth included1 x LED front light1 adapterWarnings:1. irst use or long period of non-use, charge for more than 6 hours.2. Use the distribution adapter to avoid damage to spare parts.3. Use a clean, wet, soft cloth to wipe this device, then use a dry cloth to wipe off the water.4. Use an alcohol-clean optical glass and adjust the screw parts.5. Do not bathe or high pressure high temperature this device.