Organic photovoltaics (OPV) cells and modules modules for indoor, low level, artificial light applications will be developed with high (>30%) power conversion efficiencies (PCEs). The indoor OPV modules will be made of non-toxic materials, mechanically flexible, ergonomically dimensioned for wide exploitation as demonstrated by CardLab and Polar in the use case scenarios. We aim for scalable modules of low band gap system OPV, to reach the desired specifications. WP3 will draw on specifications from WP1, commercial materials, materials from WP2, and provide working modules for exploitation in WP4 and WP5, as well as industrial testing in WP6.