Abstract
Aims. We aim to assess the nature of three WNh stars in the SMC, to constrain stellar evolution beyond the main sequence at low metallicity, and to investigate the metallicity dependence of the clumping properties of massive stars. Methods. We compute atmosphere models to derive the stellar and wind properties of the three WNh targets. A FUV/UV/optical/nearinfrared analysis gives access to temperatures, luminosities, mass loss rates, terminal velocities and stellar abundances. Results. We find that all stars still have a large hydrogen mass fraction in their atmosphere, and show clear signs of CNO processing in their surface abundances. One of the targets can be accounted for by normal stellar evolution. It is a star with an initial mass
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