  We construct the effective Lagrangian describing the light glueballs
associated with the unbroken and confining SU(2) color subgroup for the 2
flavor superconductive phase of QCD. This Lagrangian constitutes a key
ingredient for understanding the non perturbative physics of 2 flavor color
superconductivity. We estimate the two photon decay process of the light
glueballs using the saturation of the electromagnetic trace anomaly at the
effective Lagrangian level. The present results are particularly relevant to
our model of Gamma Ray Bursts based on color superconductivity in Quark Stars
(R. Ouyed and F. Sannino astro-ph/0103022).
