The Lighting Research Center (LRC) at Rensselaer Polytechnic Institute has developed a free online tool, the horticulture luminaire calculator, to assist growers evaluating the performance, efficiency, and economics of a wide variety of horticultural luminaires, typically used in greenhouses and other controlled agricultural environments. The horticulture luminaire calculator enables growers to compare different luminaires and choose the optimize solutions for their applications. (Image: LRC) Horticulture lighting is become more significant with indoor farming and high-...