***** **********Best Quality Guranteed. *****Biological microscope for medical, general clinical and laboratory research*****Monocular head; 402000x magnification power; revolving nosepiece with 3 objectives*****High-quality achromatic objective lenses (including an immersion lens) *****LED illumination with adjustable brightness, which does not heat the object*****Abbe condenser with iris diaphragm included; lifetime warranty