Swedish Military Portable Light Set: Made to carry in field operations. Can be used with 12 volt or 24 volt army trucks. Just change the bulbs, they look like same bulbs as tail lights. Set has 2 heavy-duty lamps mounted on arms that swivel and light can be moved up and down: arms have springs that make lamp stay where you want it. Mounting base clamps to tables, tailgate of trucks, etc. Lamps cords have adaptor so both can be clamped to battery posts. There is also a small transformer with a European plug on it, Maybe it converts these lamps who knows? These come in a wooden storage trunk OD in color with large carrying handles, all metal bound corners, hinged lid, and large latches. Used good condition.