Very occasionally, I have found this very nice IR laser source - 808nm infrared laser module here:
It is very special IR laser source different from visible red or green laser, it is mostly workable for various night vision illumination. For instance, a high powered 400mW infrared laser diode module can be used to make ir laser illumination for military targeting, night hunting, supervision in factory, oil field or hall etc.
Besides formal IR laser radiation, 808nm infrared laser module also support continuous laser dot source emitting. It always selects DC input power supply or rechargeable battery box. According to direct laser diode emission, this IR laser diode module is always able to make the most stable and reliable IR laser dot alignment and positioning in continuous use.