Product Description
"This is an ideal microscope for home school or for students in elementary to high school to learn sciences 360 degree rotatable monocular head offers five magnification settings 40X, 100X, 250X, 400X & 1000X Widefield all optical glass elements includes single lens condenser with disc diaphragm Sturdy all metal framework. Power Supply - 110 V LED illumination system uses either an outlet (adapter included) or three AA batteries (or re-chargeable batteries) "