OMAX 40X-2000X Trinocular Lab Compound Microscope with Double Layer Mechanical Stage Head: 45degrees inclined 360 degrees swiveling trinocular; Nosepiece: revolving quadruple; Eyepieces: wide field WF10X and WF20X; Objective: achromatic DIN 4x, 10x, 40x(S), 100x(S, Oil); Total magnification: 40x-80x-100x-200x-400x-800x-1000x-2000x Transmitted (lower) illuminator: 6V/20W Halogen; Stage: mechanical double layer size: 5-1/2inch x 5-1/2inch (140mm x 140mm); Stage x-y stroke (travel range): 3inch x 2inch (75mm x 50mm); Photo tube adjustment range: 3/4inch (18mm) Focus adjustment: Coaxial coarse and fine knobs on both sides; Focusing knob can be locked for observation and transportation Condenser and diaphragm: NA1.25 Abbe condenser with iris diaphragm; Power supply: 100V~240V 50/60Hz worldwide range (US and Canada plug) 5-year warranty against manufacturing defects