A device for hydroponic cultivation, the device including one or more room(s) for receiving one or more seed(s), one or more source(s) of artificial light, arranged to produce photosynthetically active radiation (PAR) to the one or more room(s). The device further includes a control unit for adjusting the photosynthetically active radiation (PAR) of the artificial light based on the growing phase of the plant(s) being grown in the device.