Very dangerous.
Having worked with high power lasers, even the reflected light off of a non reflective surface can cause eye damage to those not wearing protection. At these power levels they are Fucking up random people’s eyes as they are just walking by.
I dont even know if welding glasses would be enough protection
Wood doesn't directly reflect laser light and burns right away (charred surface absorbs even more)
Power is adjustable and I don't think they need 100% of it to cut the trees/branches shown in the vid.
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