This red light therapy device features 3 wavelengths: 660nm red light 850nm near-infrared light and 940nm far-infrared light. Relying on thermal effects (not traditional radiation heating) it uses longer wavelengths for deeper penetration and enhanced efficacy. The 4-head design with 180 high-quality LED beads per wavelength (32W power) ensures deep therapy while its adjustable stand (15-60 inches height 4 modes gooseneck angle) offers customizable comfort. Position 5-10 inches from the body use 15-30 minutes per session 3-4 times weekly for 4-5 weeks. Ideal as a gift it comes with 24/7 customer support for any issues.