... :4X,10X,40X(S),100X(S,Oil) Eyepiece :WF10X Lab Trinocular Biological Microscopes XSZ-107SM Configuration MobelXSZ-107SMAchromatic Objectives 4X,10X ... Wide Field Eyepiece WF10X,WF16X (optional)Viewing head Compensation Free Trinocular Head Stage Double Layer Mechanical Stage, Size 140X140mm,Moving Range ... IIIumination Halogen Lamp 220V/6V20W or 110V/6v20W Lab Trinocular Biological Microscopes XSZ-107SM