He is thinking about buying a Rechargeable Laser Pointer to avoid crows because he is in trouble because of the damage to the house equipment from the crows and the threat of his elderly parents. Please tell us the points of purchase such as strength, color, price, durability, manufacturer, type of power supply, etc. I'm not thinking about other uses, so I'd like to raise it as cheaply as possible. Also, I try to use it safely so as not to inconvenience the neighborhood, but I would like to know if there are any points to be careful about when using it, such as the law and how to use it. The maximum distance of the target is about 20 to 30 m, assuming that it is on an electric wire or on the roof of your house.
world's strongest laser pointer 80000mw
A: The light point of the blue laser pointer is not a point, but a small rectangle. In a blink of an eye, ignite cigarettes, matches, dead leaves, etc.
This effect cannot be achieved unless it is a rectangle.
5 to 10 cm from the light outlet is the thinnest part of the beam, which ignites a cigarette.
I learned a lot! It's amazing technology and power.
2021 latest popular crow extermination device repellent No.5: laser pointer key chain type
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