The product description on webpage reads fairly normally at first: the laser emits a 445nm blue, high power 1W beam which appears up to 4000% brighter than other lasers. Pretty cool, and pretty standard. Then, right down at the bottom, they lay this out–”Saying this laser is extremely dangerous is an understatement. It will blind instantly and permanently, and set fire to skin and other body parts.” Did you just say “holy shit” under your breath? Yeah, us too.