Quiescent and averaged flux densities for the FF and YMDF models. Fluxes are shown for the quiescent state (solid lines) and simulation-averaged state (dashed lines), averaged over all flaring events contributions within 360 days for two flare activity models: YMDF model demonstrates a clear UV and NUV flux excess during flares compared to FF model, while longer wavelengths show good agreement across models and small excess in flux density comparing to the quiescent stellar radiation.