This versatile, dual-light microscope functions as both a high-powered, transmitted-light microscope for viewing microscopic specimens, as well as a low-powered, reflected-light microscope for viewing larger objects, such as leaves and bugs. The lower light can be employed for incredibly high-detail viewing of ultra-small, translucent specimens like cells, or even the vascular systems of thin leaves. And for more-opaque objects, like stamps, sand, or insects, the upper light provides reflected illumination. In all, the microscope offers five magnification settings: 40X, 100X, 250X, 400X, and 1000X. Designed for students to learn science for years of continued observations, it has full optical glass elements, metal framework, two eyepieces (10X and 25X), 360 degree rotatable monocular head, and coarse & fine focusing. The light sources use either an outlet (adapter included) or three AA batteries (included). This microscope is perfect for academics in home school for students in elementary to high school. Features : High Power Student Microscope with Coarse & Fine Focusing and Top and Bottom Lights! 45 Degree Inclined 360 Degree Swiveling Monocular Head with Locked-in Eyepiece Built-in Incident and Transmitted LED Illumination System Plain Stage with Clips and Stain Resistant Finish High Resolution Offers Sharp Images Five Magnifications, 40X, 100X, 250X, 400X, and 1000X Single Lens Condenser and Disc Diaphragm Focusing Control Knobs on Both Sides All Coated Optical Elements Precise Ground Glass Lens Full Metal Mechanical Components Solid Metal Frame with Stain Resistant Enamel Finish Specifications : Head: 45 degree inclined monocular Eyepieces: WF10X, WF25X Objectives: 4X, 10X, 40X (spring) Condenser: 0.65 NA single lens with 6-hole disc diaphragm Stage Dimensions: 3-1/2" x 3-1/2" Illumination: LED, 1W, top and bottom Power Supply: 110V/60Hz (adapter included) or 3AA batteries (included) Packing List : One Monocular Microscope with Three Objectives and Top & Bottom Lights One Widefield 10X Eyepiece One Widefield 25X Eyepiece One Dust Cover Two Clips One Outlet Power Adapter Three AA Batteries 50 Pre-Cleaned Blank Microscope Slides and 100 22x22mm Square Cover Glass 5 Pack Plastic Disposable Tweezers AmScope PS25W 25 Glass Prepared Microscope Slides with Wooden Box 50X-500X 0.3MP Handheld Multi-USB Digital Microscope with LED Illumination for PC and Android *Recommended for Ages 10 & Up