Features: 1) Achromatic objectives: 4x, 10x, 40x(s), 100X(S, Oil) 2) Eyepiece: WF10X, WF16X 3) Nosepiece: quadruple 4) Stage: double layer mechanical stage 115 x 125mm 5) Focusing: coaxial coarse and fine adjustment, focusing range 20mm, focusing interval 0.002mm 6) Condenser: abbe NA1.20 condenser 7) Illumination: 6V/20W halogen lamp, adjustable brightness 8) Power: AC Input 220V or 110V, DC Output 6v