TELMU Microscopes for Students Adults, 40X-1000X Compound Monocular Microscope
¡¾ Dual Illumination System¡¿The microscope for adults features built-in dual LED illumination. The bottom lighting is for the thin and/or transparent specimens. The opaque or solid subjects that cannot be viewed by transmitted light can be studied by top lighting.(LED light source is powered by 3 1.5v AA batteries, excluding batteries).