Specifically designed to reduce infrared radiation, keeping the greenhouse cooler and the ambient temperature under better control. NIR = Near Infrared Radiation is a part of the spectrum of light emitted by the sun. SolHeat reflects precisely that part, because NIR light gives off a lot of heat, but plants do not use this light much for photosynthesis. This biobased product offers maximum heat reduction for crops. For all kinds of greenhouses, glass, polycarbonate and plastic.