Hello funzelfreund,
the 105 is a good choice, if you need (or want ) 2,8A - for example to get a real bright XM-L. Runtime isn't the important point, if you want 2,8A.
If you need 1,4A or 1,5A, you can buy a cheaper driver - for example the one of this thread (5 of them cost $13,71 and you can modd them to 3 modes):