Carson 100x-1000x Table Top Microscope Gray. The Carson 100-1000x Intermediate Biological Microscope has a monocular head at 45 degree angle for comfortable viewing and is rotatable 360 degrees for easy sharing of the specimen view. The Carson 100-1000x Microscope w/ LED Illumination has both coarse and fine focus knobs to help the user to achieve a sharp focus with LED illumination that provides a bright white colored light and also has an intensity control to set the optimal lighting conditions. The Carson 100-1000x University Microscope has a filter holder with included blue color filter and the included AC power adaptor allows for use internationally without the need for a voltage transformer. Specifications for Carson 100-1000x Intermediate Biological Microscope: Magnification: 40x-400x Lens Size: Objectives Features: Working Stage Size Eye Relief: Eye Pieces Weight: 3.12 lbs Dimensions: 7.5" x 6" x 11.25" Accessories: Power Adapter Batteries: Illumination Features of Carson 100x-1000x Intermediate Biological Microscope Magnification 100x-1000x Eye Pieces WF 10x Package Contents: Carson 100x-1000x Intermediate Biological Microscope Power Cord Included: AC 110V-240V 50/60Hz Carson MS-100: 100X-1000X Table Top Microscope Gray