Was evaluated the effect of light intensity of Light Emitting Diodes (LED) and photoperiod in the production of hydroponic Green fodder (HGF) of variety corn yellow and use of water, using rotatable central composite design (RCCD) and response surface methodology (RSM). Was used for the production of HGF an adjustable metal support of three (03) levels with centrifugal pump to recirculate the water every two (02) hours for one (01) minute of irrigation by gravity and flood, also two lights LED white and two (02) timers to control the time of the pump operation and the lights. Eleven (11) treatments were performed in trays, with a stocking density of 0.5 g of seeds/cm2 (5 kg/m2). With an additional tray (control) with indirect natural light under shadow. The rest of crops were also placed under indirect natural light under shadow. Eleven (11) treatments were illuminated with LED light dur...