Spectral energy distributions of four white dwarfs analyzed in this work. The colored points in all panels represent the J-PLUS 3-arcsec-diameter photometry, corrected for aperture effects. Broad-band filters (u, ɡ, r, i, z) are shown as squares, whereas narrow- and medium-band filters (J0378, J0395, J0410, J0430, J0515, J0660, J0861) are shown as circles. The best-fitting solution is indicated gray diamonds connected with a solid line, with the derived parameters and their uncertainties labeled in the panels: effective temperature (T_eff), surface gravity (log g), and parallax (ϖ). The unique J-PLUS identification, composed of the TILE_ID of the reference r-band image and the NUMBER assigned by SExtractor to the source, is also reported in the panels for reference. Top panels: all passbands were used in the SED-fitting process, and the probability of having an H-dominated atmosphere (p_H) is provided. Bottom panels: the equivalent width in the J0395 (EW_J0395) was computed to identify the presence of calcium absorption, using the expected continuum from the SED-fitting to the other eleven passbands (white diamond) as reference. These two sources have a probability of calcium absorption of p_Ca = 1.