Top panel: Ṁ values of the PoWR^HD WN4b models in this work (red squares) and the S25 targets (cyan triangles) in terms of L_*/M_*. For comparison, the Ṁ laws from Nugis & Lamers (2000), Yoon (2017) and Sander & Vink (2020) are displayed. Middle panel: same Ṁ values, but in terms of L_* and compared with the same predictions as in the top panel. Bottom panel: model L_* values in terms of M_*. The L_* ~ M_* relations from Nugis & Lamers (2000) and Gräfener et al. (2011) are shown as well, along with the evolutionary tracks (with rotation) from Chieffi & Limongi (2013) for initial masses 20, 30, 60, and 120 M_⊙. The evolutionary tracks are colour-coded by carbon surface abundances in mass fractions.