2.7 PPF output efficiency. Foldable design, slim and compact to save shipping cost and convenience installation. Supporting daisy chain and 0/1V dimming. To supplement natural daylight and raise grow light levels in order to enhance photosynthesis and thereby improve growth and quality of plants in greenhouses. Our GL series is the efficient solution for Horticulture lighting - used to support, increase and enable the growth of plants by illuminating where and when needed: Top Lighting, Inter Lighting, Vertical Farming. The photomorphogenic effects are controlled by applying a spectrum with a certain mix of 660nm and 730nm in order to stimulate the pr and pfr phytochromes. We have two spectrums with different mixes of 660nm and 730nm in order to stimulate the pr and pfr phytochromes.