Ok my primary flashlights are the 4sevens quarks, however I have come to the conclusion that HID lights are better throwers. I work for the railroad and I need some good range, Im talking like 1000-2000 foot+ range. I work in a railyard at night and need to be able to see cars up to a half mile away and my little 1aa quark wont cut it for that. I am looking for waterproof and somewhat compact, 18650 compatiblity would be a plus. I am new to the HID world so please give me some recomendations.