  Under the framework of the magnetized accretion ejection structures, we
analyze the energy balance properties, and study the spectral energy
distributions (SEDs) of the Jet Emitting Disc (JED) model for black hole X-ray
transients. Various radiative processes are considered, i.e. synchrotron,
bremsstrahlung, and their Comptonizations, and external Comptonization of
radiation from outer thin disc. With these cooling terms taken into account, we
solve the thermal equilibrium equation self-consistently and find three
solutions, of which the cold and the hot solutions are stable. Subsequently we
investigate the theoretical SEDs for these two stable solutions.We find the hot
JED model can naturally explain the spectra of the Galactic microquasars in
their hard states. As an example, we apply this model to the case of XTE
J1118+480.
