LED lights can do some ultraviolet radiation，isn’t?

First, to talk about– from the point of view of electronic: Since the light source is used in LED, LED is a light emitting device by DC, in theory,That’s comparing LED and traditional lamp is different.traditional lamp mean energy-saving lamp, metal halide lamp, incandescent lamp. They were  power supply with AC. the frequency fluctuations in the exchange will be the traditional strobe light, LED lights do not flicker,but please note, be sure to choose that the surface light.

From the optical point of view to analyzing:

Infra-red bursts may be created by the traditional light source, you can be understood as the visible infrared, the wavelength at 780 nm above will damage the eyes.And LED light source, mainly blue chip excitation yellow phosphor, Light-emitting wavelength between 380-780nm, no ultraviolet and infrared, good uv LED strip light source, CRI is more than 85 of the spectrum (color rendering index, the higher the closer to natural light).