monocular ,four objectives,1600,electric light source. N.A. 1.25 Abbe condenser;Built-in LED lights. ModelXSZ-107BNTotal Magnification40X~1600XEyepiecesWF10X(2PCS), WF16X(2PCS)Objectives4X, 10X,40XS, 100XSEyepieces TubeBinocular 45º. inclined Tube Rotatable 360º.illumination6V/20W Halogen LampCoarse Adjustment Range30mmFine Adjustment Range30mmWorking StageDouble Layer Mechanical Stage:130×140mm ...