A recent study published in Solar RRL has examined the characterization of perovskite–silicon (Pero/Si) tandem solar cells in an industrial environment. The researchers stated that the monolithic series connection of the two subcells and the shared two terminal structure make independent electrical probing impossible. The perovskite absorber’s metastability, particularly ion migration, introduces slow and time dependent measurement effects. Together with industrial high throughput requirements, these factors complicate accurate and rapid characterization. The study proposes acquiring I–V data using LED based solar simulators, estimating an approximation of external quantum efficiency prior to conducting I–V measurements with an adjusted LED spectrum. Results are presented on reference III/V and different Pero/Si cells. Ion migration is modeled to assess preconditioning and transient effects. Short light preconditioning is recommended to stabilize scan time dependence. Camera based luminescence methods for inline analysis are also presented.