Ratio of the luminosities obtained from our spectral integration method and the value computed using the bolometric correction of (HH14). The blue dots indicate the values obtained for the spectra presented here aswell as in (MTR13) and (MFA17). The red line indicates the non-parametric fit, and the shaded area indicates the corresponding 1σ uncertainty interval obtained from bootstrapping the non-parametric fitting procedure. The orange point is Par-Lup3-1, which was excluded from this procedure.