Specifications:
Class IIIB
Power Supply: AAA battery
Wavelength: 405nm
Output Power: < 20mW
Output Mode: CW constant wave
Understanding the blue/violet laser diode:
The violet 405 nm laser (whether constructed from GaN or frequency-doubled GaAs laser diodes) is not in fact blue, but appears to the eye as violet, a color for which a human eye has a very limited sensitivity. When pointed at many white objects (such as commercial white typing or printing paper) the laser dot changes from violet, and appears blue. This color is actually due to blue fluorescence from brightening dyes added to the paper—the same effect as from a blacklight lamp.