How to make a laser pointer for less than $2. The only things I had to buy were some button cell batteries, and the laser diode. I got them both off eBay for very cheap. With this method, you can buy a very powerful laser diode and make a burning laser for a couple bucks.
Laser diode: [ Ссылка ]
Button cell batteries: [ Ссылка ]
Check out Paul Pyro's Channel: [ Ссылка ]
How to Make a Laser Pointer
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