A 1w laser will permanently blind you instantly. You can buy/build them very cheaply and easily, but a class 4 laser isn’t a toy.
For perspective, the regular red laser pointers from your local store are like 5mW at most.
A 44w laser is probably an IR fiber laser used for tattoo removal or some industrial application. You can get them cheap, but they are not handheld. Also lasers that powerful tend to be pulsed.
Nichia makes 5w+ 445nm diodes that are small enough to fit in a flashlight
A 1w laser will permanently blind you instantly. You can buy/build them very cheaply and easily, but a class 4 laser isn’t a toy.
For perspective, the regular red laser pointers from your local store are like 5mW at most.
A 44w laser is probably an IR fiber laser used for tattoo removal or some industrial application. You can get them cheap, but they are not handheld. Also lasers that powerful tend to be pulsed.
Nichia makes 5w+ 445nm diodes that are small enough to fit in a flashlight