The trinocular compound LED microscope provides both brightfield and darkfield microscope system. It offers eight level magnifications from 40X to 1600X. The darkfield compound microscope features an optical system for simultaneously observing images through eyepieces and an adjustable trinocular port. The compound microscopy includes a 45 degree inclined 360 degree swiveling trinocular head, body frame, revolving quadruple nosepiece, two pairs of widefield eyepieces WF10X/18 and WF16X, four DIN achromatic objectives: 4X, 10X, 40X (S), 100X (S,Oil), large double layer mechanical stage, LED illumination system and darkfield NA0.7-0.9 & brightfield Abbe NA1.25 condensers. The LED lamp can be replaced by yourself. The trinocular port is easy to mount photo or video capability. All lenses are made of high quality optical glass. The high resolution image in the field of view is crystal clear and will satisfy the demands of professionals. This trinocular microscopy is good for teaching, demonstration, clinical examination and research purpose.