Skin Tightening Acne Treatment Wrinkle Remover 7 Color PDT LED Light Therapy Machin e Working Principle The PDT LED Light Therapy Machine utilizes low-energy LED light at specific wavelengths to provide targeted light-based skincare applications. Each wavelength is carefully selected for different beauty and scalp-care purposes, delivering even light distribution to support natural skin activity and improve overall skin appearance. Technical Specifications Application Beauty