Microscope Usage: 1. Insert the battery, turn on the LED power switch; 2. Rotate the focus knob in counterclockwise, elevate lens barrel, adjust the light brightness; 3. Take samples first, place it on the glass slide, can cover with another glass slide as a coverslip. Then place the one with sample on the stage and fix with clip. Move specimens to intermediate aperture, adjust the objective to the uppermost; 4. Turn the objective lens to 100x, 200x, 450x as your need; 5. Looking at the objective, adjust the height of the objective lens to adjustable height, do not touch coverslip, look at the eyepiece, increase the focal length a little until you can observe the detail. Note: Without anything on the objective tray, don't look down the eyepiece when the LED light is lighted. Package: 1 x Microscope 4 x Blank labels 1 x Tweezer 1 x Plastic ware 2 x Collection bottle 1 x Color box
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