660nm is visible light, referring to red light with a wavelength of 660 nanometers. When 660nm light is emitted from a light source, our eyes are able to see a distinct reddish glow. The wavelength range of red light is between 620nm and 750nm, with 630nm 640nm 660nm and 730nm all showing red light.
LED lights can emit 660nm red color light, SMD2835, SMD3528, and SMD5050 can do red light. Using these low voltage DC 12V or 24V deep red 660nm led light strips for light therapy can promote cell regeneration and repair, anti-inflammation, improve blood circulation, reduce pain, and promote wound healing. LED 660nm red light therapy has a positive effect on both skin health and mental health.
In plant growth, red light around 660nm has a significant effect on photosynthesis, especially under certain 500nm blue light conditions, which can promote plant growth and flowering. Sometimes 660nm mixed with 3000K/3500K warm white light is also chosen to help vegetable growth.
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