The spectral energy distribution of V496 UMa. Upper panel: total spectral energy distribution of V496 UMa from the X-ray to the infrared region. White dwarf (0.8 M_⊙) (dark blue line) and main-sequence star (0.16 M_⊙) (light gray line) model spectra for 10 000 K and 3000 K, are shown combined with a red dashed line. The vertically plotted black arrow represents the amplitude of the high-state light curve in ZTF which derived from long-term g band light curve(16–18.6 mag) (see Fig. 11). Lower panel: points in the optical region and combined synthetic atmosphere models used to estimate the temperatures of the components.