1) BEST1018: 3 x AAA, 28LED aluminium flashlight2) BEST1018C:4 x AA, 49LED aluminium flashlight; 3 functions: 25LED / 49LED / 49LED flash3) BEST1019: 3 x AAA,16LED aluminium flashlight; 2 functions: 5LED / 16LED4) BEST1020: 3 x AAA, 21LED aluminium flashlight5) BEST1022B: 3 x AAA, 9LED aluminium flashlight6) BEST1025B: 2 x AA, 3LED / 4LED aluminium flashlight