ACDelco AC352 Industrial Krypton Floating Lantern with 6V Battery Uses 1-6V battery (included) Amazing savings for all camping, boating, off-roading, automotive, emergency and convenience needs ACDelco Heavy Duty 6V battery included Protective rubber end and super bright krypton bulb - maintains performance under the toughest extremes Incorporates silent-signal feature - turn light off intermittently without clicking sound