Powerful Class 4 Handheld Green Laser Pointer 525nm 2W

It has good internal heat dissipation and can be used for a long time. The laser beam looks extremely dazzling, so I don't recommend it for indoor use.

This thing feels very sturdy in the hand. I chose the 2200mW one and measured its output power, and the maximum power was higher than I expected.

It's really high-power, and the green laser beam is long-distance.