I've heard excellent reviews on the Wet Box. I went to NHALER to pick up some LR 510 cartos and a twisted drip or two. That's when I spied that Wet Box and ordered one. NHALER didn't say what battery it used and that LR cartos may overload the switch. What I need to know is what battery does it use and what cartos work best with this unit....Thanks in advance and let me know........