This is a stereo inspection microscope with a heavy-duty 80-LED illuminator. The microscope offers super widefield optics and 3.5X-90X (26:1) zoom magnification power. The intensity-adjustable LED illuminator comes with a solid aluminum ring light and heavy-duty metal control box providing bright cool light illumination. This unit is a perfect system for industrial inspection applications. It is also the right microscopy system for biological laboratory applications that require low heat release. This microscope is in factory sealed boxes. Features : An perfect stereo inspection microscope with 80-LED aluminum ring light and heavy-duty metal control box 3.5X-90X super wide zoom magnification power Intensity-adjustable bright cool light LED illumination Super high resolution with great flatness and contrast giving sharp and clear images Binocular head with 45-degree inclined 360-degree swiveling eye tubes 30mm SUPER widefield high-eyepoint eyepieces with 20 mm field of view 0.5X and 2.0X barlow lenses included High resolution optical system with great flatness and contrast Sharp stereo erect images with wide field of view Crystal clear original true color microscope images Dual eye tubes with adjustable diopter Large working distance Contemporary table stand Accurate alignment ensuring a fatigue-free long hour viewing Full optical glass elements Precise ground glass lenses Full metal chrome-plated mechanical components Adjustable interpupillary distance Rubber eye-guards included Manufactured under ISO 9001 quality control standard Five (5) year manufacturer warranty for microscope Unbeatable low price for the same guaranteed or the difference back! Satisfaction guaranteed or your money back! Specifications : Head: 360-degree rotatable 45-degree inclined binocular Eyepieces: 30mm super widefield high-eyepoint WH10X/20MM Barlow Lenses: 0.5X and 2X Objective Zoom Range: 0.7X-4.5X Zoom Ratio: 26:1 Diopter Adjustment: +/- 5dp Interpupillary Distance: 2-3/16 - 2-15/16 (55-75mm) Working Distance: 8 (200mm) Illumination: 80-LED Ring Light Power Input: 110-240V 50-60HZ Automatically Switching Stand: 12.5 x10 x0.75 (320x280x20mm) solid cast steel base Accessories: a pair of eye-guards Packing List : One Binocular Stereo Zoom Head One Pair of SUPER Widefield 10X Eyepieces One 0.5X Barlow Lens One 2X Barlow Lens One 80-LED Aluminum Ring Light with Metal Control Box One Contemporary Table Stand One Focusing Rack One Round Working Plate One Pair of Eye-Guards One Pair of Clips One Dust Cover One Ring Adapter User s Manual