Powerful Handy Blue Laser Pointer 4W 445nm with Battery

The power and stability are good, but it is not waterproof.

This model exceeded my expectations! It is powerful, stable, and easy to operate.

It can light a match in an instant. I am impressed by the 4000mW output!

This 4W laser pointer is powered by only one battery, and it's easy to operate. It meets my requirements.