Is there any particular reason why the nail machine emits a purple light?

Many customers see that our UV LED lamps emit lilac or blue-violet light when used, and they ask, "Since it is a UV (ultraviolet) lamp, why can I see violet light?" "Actually, it's normal.UV LED lamps mainly emit light in the ultraviolet wavelength band (e.g., 365nm, 405nm), which is close to the edge of visible light, and some wavelengths (especially 405nm) have a slightly visible blue-violet tinge.
Other words:
UV light itself is "invisible light"
But for the curing effect, our lamps emit "blue-violet" light at the same time with some wavelengths at the edge of the visible zone
So what you're seeing is the visible part of the "mixed light"Light violet light is a normal visual phenomenon, there is no strong harmful radiation, if you still have any questions, we also support to provide the product's spectral test report, the quality is transparent, rest assured to use