... Arm 500mm --- Rotation angle of the Binocular Tubes 360°--- Lamp 8V, 50W--- Power Input ~220V, 50Hz Model Table--- Magnification 6X, 10X--- Eyepiece ... Arm 200mm --- Rotation angle of the Binocular Tubes 360°--- Lamp 8V, 50W --- Power Input ~220V, 50Hz OPERATING MICROSCOPE