UVB (full name in English: ultraviolet radiation b) is a wavelength band that divides the ultraviolet wavelength 7a64e4b893e5b19e31333431353263 according to different biological effects. The wavelength of the UVB lamp is 275-320nm, also known as medium-wave erythema effect ultraviolet, which is mainly used in medical treatment and aging Tests, spectral analysis, etc., UVB ultraviolet has erythema effect on the human body, can promote the metabolism of minerals in the body and the formation of vitamin D, but long-term or excessive exposure will cause skin tanning, and cause redness and peeling.

Dermatological phototherapy tubes, ultraviolet health lamps, and plant growth lamps are made of special transparent glass (does not transmit light below 254nm) and phosphors with a peak near 300nm.

With the rising of deep ultraviolet LEDs, UVA and UVC LEDs have slowly replaced traditional mercury lamps, gradually occupying the market. However, for the application field of UVB LED, everyone is still groping, and it is certain that phototherapy is a new and predictable direction. Phototherapy is a method of using electromagnetic radiation to produce light of different wavelengths to treat skin diseases

  The uvb meter LS125 can test the ultraviolet radiation illuminance of various wavelength bands of UVA, UVB and UVC. The uvb meter uses a digital probe, plug-in design, a host can intelligently match 9 different probes. The host can intelligently determine the probe model.