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Warning: This laser's brightness is potentially hazardous to pilots vision and satellite sensors. NEVER point it at an aircraft or a satellite. The S3 Krypton is too powerful to be used as a laser pointer or a gun sight. Never point it at another person, an animal or a vehicle.

Now, more and more laser pointers and flashlights sold in the market are class IIIB with a power over 5mW. But when the laser directly penetrates into the eyes, there may be some damage. Especially to some high power laser pointers, diffuse light probably damage the eyes, the focus are more likely to ignite flammable materials. Therefore laser pointers are not a toy, not suitable for children. When operating high-power laser, wear special secure glasses would be safe, especially for the invisible laser. In a word, no matter how much power the laser power is, you need to avoid hitting into your eyes.