Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

If you own a Raspberry Pi 2 or later, there are only two LED lights to be concerned of, one green and one red. The position of the lights varies between models, however, each light is labeled ...

Red; Green; Sometimes different LED lights are combined with a photosensitive drug called 5-aminolevulinic acid. This medicine is applied to the skin and used in combination with the LED light.

Editor's Note, July 8, 2025: Prime Day begins today, and we've already spotted some of the best red light therapy devices we've tested discounted on Amazon. The best LED panel Fxtiaa LED-Face ...