Features: 1) Achromatic objectives: 4x, 10x, 40x(s), 100x (s, oil) 2) Eyepiece: WF10x, WF16x 3) Eyepiece head: compensation free binocular head 4) Nosepiece: quadruple 5) Stage: double layer mechanical stage; 115 x 125mm 6) Focusing: coaxial coarse and fine adjustment 7) Focusing range: 20mm; focusing interval: 0.002mm 8) Illumination condenser: condenser NA= 1.20; 6V / 15W 9) Halogen lamp, with adjustable brightness 10) Power: AC input 110 / 220V; DC output 6V Packing: Carton box or wooden case