Damn, i thought 1w was very powerful, but over 2w’s, that’s insane, that’s what i did with the laser i had, pointed it at the wall and it was very bright, thought i damaged my eyes lol..I probably shouldn't say this but personally I've seen over 2 watts of 445 on a white wall and nothing has happened to me. It's those reflections you gotta worry about. Accidents happen when you don't expect them. It's why they're accidents. So always keep that in mind when you turn it on.