Magnus Advanced Laboratory Trinocular Microscope Model MLXi-TR Plus Freedom with Battery Back-up complete with long life LED light source with universal SMPS power supply for mains supply 100V~240V, quadruple ball bearing inward nosepiece, co-axial coarse and fine focusing control, high resolution Infinity corrected Super Plan Achromatic Objectives 4x, 10x, 40x (spring), 100x oil (spring),360deg rotatable inclined Siedentopf Trinocular observation tube, fungus resistant coated optics for tropical conditions, widefield paired eyepiece WH10x (F.N.20), right hand control co-axial low drive mechanical stage, rack & pinion drive focusable Abbe condenser 0.9/ 1.25 N.A with iris diaphragm and with blue Filter. Features : Plan Infinity Optics, Excellent Field Flatness, F.N.20, Siedentopf Head, hard coated stage with double slide holder, Easily replaceable lamp, Inward facing nosepiece, upper focus limit stopper to prevent accidental damage to objectives, Universal Power supply ensures constant voltage & International standard Quality manufacture.