1. Pointing. Some only work in the instructor's classroom, and some fire directly to the edge of the sky.
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2. Toys. It is often used in everyday life at home, especially if you have a cat or dog.
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3. Calibration. Few people admit that laser pointers are best suited for calibration.
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4. Laser pointers over 500mw ignite flammable materials such as matches, cigarettes, rubber and plastic bags.

5. Night lighting.