led grow lights, strip light red blue 5:1 5050 60 leds phyto lamps full spectrum usb growing lighting for flower seeding hydroponic plant

1. 280nm ~ 315nm influence on morphological and physiological processes is minimal. 2. 315 nm ~ 420nm chlorophyll absorbs less impact pperiod effect, prevent stem elongation. 3. 420 nm ~ 500nm (blue) chlorophyll and carotenoids absorbed the largest proportion, the greatest impact on psynthesis. 4. 500 nm ~ 620nm dye absorption rate is not high. 5. 620nm ~ 750nm (red) chlorophyll absorption rate "high", has a significant influence on psynthesis and pperiod effect