Little tips for spectrum and plants grow: 280nm-315nm: Minimal influence on morphological and physiological processes. 315nm-400nm(violet): Less chlorophyll absorption, prevent stem elongation. 400nm-520nm(Blue): Chlorophyll and carotenoid absorption maximum, have the largest effect on photosynthesis. Help plants generating stems and leaves. 520nm-610nm(Green): Low pigment absorption rate, but great for special plants, cannabis. 610nm-730nm(Red): Low absorption of chlorophyll, significantly affect photosynthesis and photoperiod. Help plants flowering and fruiting. 720nm-1000nm: Promote stem elongation and germination. 400w COB LED grow light spectrum: 28pcs 660 , 16pcs 640, 8pcs 440 , 4pcs 460 , 4pcs 470 , 2pcs 525, 2pcs 730 Red and blue LED, best for plants photosynthesis. Indoor & greenhouse plants absorb lights to have photosynthesis which transfer CO2 & water to glucose and release O2, so that plants get necessary nutrients to grow. Plants use inorganic generate organic matter and stored energy by photosynthesis. Green LED has a great function on cannabis, providing nutrients. Size: 11.4*6.9*3.3 inch Chip quantities: 2pcs 64*3w Chip size: red:blue: 42mil-45mil Certification: CE, RoHS, FCC (CSA standard COB led grow light can be customized) View Angle of reflector: 90 degree patent reflector cup Input voltage: AC85~265V Current: 600ma Working frequency: 50 - 60 Hz Working temperature: -4 - 122 ℉ Lifespan: 50000 hours Material: Iron Package included: 1 Galaxyhydro COB led grow light, 1 power cord, 1 stainless steel hanging kit
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