I would like if it was legit, but if you told me cni had a hand held 1000mw small handheld, I would not believe it so I have no idea how that laser could possible be in spec and for that price, I would not believe that if I were you I would bet its 200mw. I may be wrong, but, 1000 would take a 3W IR diode and cooling for the optics, I would want more juice for a 3W diode than 1 3.7 cell also. That is if they are really good and get optimal efficacy out of the KTP. So you may want to read the thread http://laserpointerforums.com/f41/laserpointerpro-64170.html also. If you want a realy nice stable green, its costly. The cni built laser you looked at has a 250mw version. Also if you want to go cheap but not get scammed or a piece of junk you could check out lazerer.com but he is down today right now, or I would have posted you a link, said he is restocking. you could look at this its way more than you need and an eye hazard http://www.o-like.com/index.php?main_page=product_info&cPath=2&products_id=124 I bet it can do 340mw or so. It just depends on you view on quality and the amount of money you have to spend.