Crab Nebula spectrum obtained here compared to the lower energy measurements with MAGIC (Aleksić et al. 2015) and Fermi/ LAT. The blue shaded band denotes the 68% confidence flux range, estimated from the fit with the log-parabola function. Solid lines of different colours show several leptonic models from Meyer et al. (2010), Aleksić et al. (2015) and Fraschetti & Pohl (2017), previously constructed for the Crab Nebula. Dashed lines denote predictions for hadronic contribution from Bednarek & Protheroe (1997) (BP), and Amato et al. (2003) (AGB). Shown is the bulk wind Lorentz factor (Γ), and is the effective target material density increase over its mean value.