InfraRed丨IR LED Strip Lights

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.

In the visible light spectrum, the wavelength of red light ranges from about 620nm to 750nm. Compared to 660nm bright deep red light, 730nm far red light is closer to the boundary of infrared light.

730nm led grow light

730nm light promotes shade avoidance, makes plants taller, and regulates flowering cycles. This wavelength of red light also penetrates deeply into the plant canopy, which enhances photosynthesis and is especially beneficial for ornamental flowers.

800nm 810nm 820nm wavelengths are all near IR light. 810nm integrated with LED diodes and you can see a faint glow. 810nm red light is a very light pink color.

The 810nm wavelength has strong tissue penetration ability and can penetrate deep into the skin tissue and reach the target treatment area, often used in sauna applications and photobiomodulation therapy. Beneficial for improving depressive symptoms, enhancing muscle performance and post-exercise recovery, promoting lymphatic drainage, antibacterial and anti-inflammatory, and blood circulation.

850nm is a wavelength of light that lies in the near-infrared spectral range (800nm~1500nm), and this band of light is invisible to the human eye. So you can't see with your naked eye whether the 850nm LED strip or light is working or not. But you can see the 850nm LED light beads emitting a faint pinkish reddish dimming light under the cell phone camera and other devices.

The 850nm near infrared light waves have significant applications in the field of phototherapy. 850nm red light therapy penetrates deep into the skin and is absorbed by the water, proteins and pigments in the tissues to generate heat energy. This heat energy stimulates circulation, increases cellular activity, and acts as an inhibitor of inflammation and pathological tissue.

660nm vs 850nm

660nm belongs to visible light, the color is deep red; while 850nm belongs to invisible light, which can only be seen under the camera equipment. 850nm wavelength is more powerful than 660nm wavelength to penetrate the tissue, and able to reach the deeper tissues of the body. Therefore, 660nm wavelength light is commonly used for surface skin problems and cosmetic issues, while 850nm wavelength light is more suitable for deeper tissue treatments.

940nm wavelength is located in the infrared lights spectral range, invisible to the naked eye. 940nm invisible infrared technology is widely utilized in applications such as night vision devices, remote controls, security cameras, and other applications to provide clear night vision while maintaining surveillance invisibility. The 940nm IR light has a good transmission capacity in the atmosphere, which makes it suitable for long-distance transmission and telephoto shooting.

940nm vs 850nm night vision

Both 940nm and 850nm near infrared light are invisible and both can be used in night vision systems. The difference is that 940nm is almost completely invisible to the naked eye and cell phone cameras, therefore 940nm is better suited for surveillance scenarios where concealment is required.

The radiation intensity of 850nm is about 2-3 times higher than that of 940nm, so 850nm infrared light will be a bit brighter. Therefore, 850nm will have a red burst situation, LED chip will appear visible red dot in the work, 940nm is not have. This can be a disadvantage in infrared lighting applications, but in some cases this visibility can help to confirm the operational status of the IR led strip.