Photosynthetically Active Radiation (PAR)

PAR Watts

Articles, Gardening

By Sunny Datko Plants see light differently than human beings do. As a result, lumens, lux and foot-candles are not exact measures for plant growth because they are used for human visibility.  Since plants use energy between 400 and 700 nanometers and light in this region is called Photosynthetically Active Radiation (PAR), we could measure […]