  We present an improved calculation of $B\to$ light vector form factors from
light-cone sum rules, including one-loop radiative corrections to twist-2 and
twist-3 contributions, and leading order twist-4 corrections. The total
theoretical uncertainty of our results at zero momentum transfer is typically
10% and can be improved, at least in part, by reducing the uncertainty of
hadronic input parameters. We present our results in a way which details the
dependence of the form factors on these parameters and facilitates the
incorporation of future updates of their values from e.g. lattice calculations.
We also give simple and easy-to-inplement parametrizations of the
$q^2$-dependence of the form factors which are valid in the full kinematical
regime of $q^2$.
