LEDs in greenhouses deliver same yield as grow lights

LED lights may soon enable greenhouse growers to grow affordable, vine-ripened tomatoes and other produce items much closer to the market, enabling more local food production, especially in the northern latitudes. The results of a Purdue University study show that by using LED lights instead of the conventional high pressure sodium (HPS) lights for growing tomatoes in greenhouses, growers could get the same yields of fruit from the plants using just 25% of the energy required with current methods.