i just bought a 20mW 405nm 3.0V-3.7V /Laser Diode Module/Violet Laser and it has a pot screw on it if i turn it up will i be able to burn stuff with it? help please thank you.
If you turn the pot screw up, you very likely will burn the diode out. If it was sold as a 20 mW unit, with the driver and diode already together, the diode isn't rated for more than that. Do so at your own risk and expense!
