Leica Microsystems is presenting its innovative LED illumination modules for stereomicroscopes, which offer optimum illumination even for difficult material samples. Thanks to modern LED technology, operating costs are significantly lower than for conventional halogen illumination. With its practically vertical illumination light path, the Leica LED3000 NVI solves even challenging illumination applications such as samples with indentations and drill holes not accessible using standard lighting components. The Leica LED5000 CXI (coaxial illumination) provides excellent detailed illumination of flat, highly reflecting surfaces such as wafers or polished metal samples, and substantially enhances contrast. Both illumination modules can be optimally combined with Leica stereomicroscopes for routine applications.