Diodo láser NUBM44 de 7 vatios en módulo de cobre de 12 mm con lente 3-E - 22AWG-JST - 450nm
Because the NUBM44 laser diode is a multi-mode diode you will always get a rectangle as opposed to a dot. This is a characteristic of all multi-mode laser diodes. You want to focus it so you have the cleanest and thinnest line possible.