The modules are tested and the output power are measured by laser power meter before sending out.
Please don't compare the power of this one with a none-measured laser.
If you doubt the output, please have the laser you recieved checked by laser power meter.
If there is any problem, please feel free to contact us. We will solve the problem asap.
It is IR laser,the laser light cannot be seen by human bare eyes with only using DDC/infrared camera get it.
please find the adapter on the picture, the adapter is a bonus for free. we cannot guarantee it can work for all countries. if you are in EU, we may put an EU convertor in the package. if the adapter we mailed out for free as bonus is not suitable for you, we are so sorry about that and please find a more suitable one in your local supermarket.