They do have an 18650 version, the h60. Where have you guys been? http://www.zebralight.com/H60-Headlamp-18650-Flood_p_10.html I had 4 of the h60 18650's fail on me, last one I sent back for repair got returned back to me from the post office. Their customer service never responeded to me after several attempts. Yes I said that correctly I have 4 failed h60 zebralights and only 1 left working.