You should not trust what they say on the live chat on WL! The pulsar, a DPSS laser? LOL! They probably just said that because they wanted to trick you to buy it. To me, they said on the live chat that the pulsar has a regulating circuit (in fact, it has not) and that the beam would be as visible as a 75mw green laser!;D The beam is not even as bright as a 5mw green laser, so what are they talking about? WL is a company desperate to still be the "largest manufacturer of hi power laser pointers" so that they are doing anything to remain on the market. I think that they are WICKED IDIOTS. No serious company should trick their customers as much as they do.