@lucivital_official: 630 & 660 nm → Visible red light 810 / 830 / 850 nm → Near-infrared light NIR may look dim or even invisible — that doesn’t mean it isn’t working. And remember: more wavelengths don’t automatically mean a better device. The whole system matters. #LuciVital #RedLightTherapy #NIR #LightTherapy #WellnessTech