ultraviolet LED application

Ultraviolet ray used in medicine and the phototherapy instrument it to adopt UVB technology . the wavelength of phototherapy instrument is 311nm. the 311nm ultraviolet ray has obvious effect for Vitiligo and psoriasis. it is physical treatments of the skin disease. the uv led strip can emits ultraviolet ray as medium wavelength as 311nm .the 311nm can be absorbed by skip tissues. it has obvious biology effect for skip tissues. and it can directly kill the bacterium or the virus in superficial tissue. it keeps the circulation moving and warms the extremities .