What Is the Most Powerful
Hand-Held Laser?

Answer:

Tested three times in five-minute durations using two separate photon-measuring devices, the Hercules 500 outputted a 1 W peak and 940 mW (+/- 20 mW) average of brilliant-green (532 nm) laser light.

Made by Laserglow Technologies of Ontario, Canada, the Class IV hand-held battery-powered device features five independent safety devices to make it legal to use around the world. Its long-range applications include construction and antenna alignment, but at close range it is capable of starting fires.