Segmentation by type classifies Light Therapy Devices into LED‑based, laser‑based, and broad‑spectrum systems, each defined by wavelength emission and power density characteristics. LED‑based devices, emitting narrow‑band light (e.g., 630 nm red, 470 nm blue), dominate the market with an estimated 55% share due to lower cost, scalability for home use, and regulatory ease. Laser‑based devices, delivering coherent monochromatic light (often in the near‑infrared range), capture about 30% of the market, favored in clinical environments for deeper tissue penetration and precise dosage control. Broad‑spectrum devices, which combine multiple wavelengths or employ full‑spectrum white light, occupy the remaining 15%, serving specialized therapeutic protocols that require simultaneous multi‑wavelength exposure. Understanding this type‑level taxonomy clarifies how technological differentiation influences adoption rates, pricing strategies, and investment focus across the Light Therapy Devices market.