It turns out that this laser is the same one sold by laserbtb.
Actually lasersbtb offers two models, 30 and 50mW. Which uses Osram 515nm 30mW and 520nm 50mW respectively.
Do you notice any color difference between low and high power mode ?
I don't notice any difference in color between the power modes. Also, I am looking on laserbtb now and I don't see this 515 5P-30, I only see 520 5P-30 and 520 5P-50 (didn't see the 50mW at first as they have a typo in their add to cart box). But this particular model is 515 5P-30. So I don't believe laserbtb sells this 515 as far as I can see. But yes those 520 5P-XX are definitely the same host and features as this 515 model.
If you go in laser diodes section in their website you will find Osram 30mW 515nm and 50mW 520nm. Now if you got to their HL series you will find it listed the same way.
As for the pointers they messed up the naming a little. If you scroll down the page in the table there is two models LF520-5P-30 and LF520-5P-50 which is obviously Osram 30mW 515nm and 50mW 520nm also there is a link to a data sheet below the table which shows PL515.