well i....hahah this is a funny story! i have built a relationship with this factory in china and they will sell me any of their lasers for very cheap...i was just going to buy a red 200mW laser from dealextream.com but they dont ship to usa because its illegal. so i as like wait i will just see if this guy ik from china will sell me a 200mW for cheap! this dude sells 350m, up too 700mw!
if you go to exshoo.com and go down to lasers you can see what he sells! look and get back to me a.s.a.p because i am chatting with him right now and he wants to know if i want to buy from him or not!
Yeah right, a 600mW green pen. No such thing. Best green pen, even from top companies is ~200mW and that is pushing it. Looks like standard generic crap, probably not IR filtered. No way I would buy that unless I could fully test it first on a meter and send it right back if it were not spec.
EDIT: You may have heard of me, I am the member who reships DealExtreme products to the US. PM me if you want one.
Well IDK, do you have a power meter? I am still reserved about that. The DX 200mW green are almost always underpowered, so don't expect that to be up to spec. I would go red, since they are diode and not DPSS they are far more likely to be up to spec than the greens.