Applications and Development of LEDs as Supplementary Lighting for Tomato at Different Latitudes

High-tech greenhouses and artificial light applications aim to improve food production, in line with one of the sustainable development goals UN Agenda 2030, namely, “zero hunger”. In past, incandescent lamps have been used for supplementary lighting (SL) at higher latitudes increase greenhouse production during dark season. Light-emitting diodes (LED) replacing gas discharge lamps, their is expanding SL different agricultural scenarios (e.g., urban farming, middle latitudes). fact, recent research on LED Mediterranean produced encouraging results. Since a daily integral (DLI) than season climate conditions influence installed power load greenhouses, installation management should be less expensive terms investment energy consumption. Accordingly, this review outline state art development, focus latitude-related requirements. Tomato was as representative crop.