Let {Xnk} be an array of rowwise independent random elements in a separable
Banach space of type r, 1≤r≤2. Complete convergence of n1/p∑k=1nXnk to 0,
0<p<r≤2 is obtained when sup1≤k≤nE ‖Xnk‖v=O(nα), α≥0 with
v(1p−1r)>α+1. An application to density estimation is also given.