Is LED purple light harmful to human body?

If the color is only purple, it is harmless. If it is an LED with ultraviolet wavelength in the range of 10-420nm, long-term exposure will be harmful.

UVLED ultraviolet rays can be used in ultraviolet curing industry and ultraviolet sterilization industry.

UVLED light source: WKM- 1A (3W LED riya lamp bead)

Rapid curing UV adhesive

Any ultraviolet radiation for too long will be harmful, for example, sunlight ultraviolet radiation for too long will tan and burn the skin.

Industrial protective clothing for ultraviolet mercury lamps and ultraviolet light-emitting diodes: WKM- 1