No, UVC light shall never be used for lighting purpose. It can be used for disinfection in unoccupied area where people and livestock are not present.

UVC radiation with a specific wavelength emitted by a germicidal lamp breaks and destroys the chains of DNA and RNA of micro-organisms, rendering them unable to grow or reproduce, which in turn leads to the death of the colony.

No. UVC with 253.7nm is very harmful for human health when being exposed. So it is used in area where people or livestock is not present.

It is a physical disinfection with high efficiency and kills almost all known virus with no chemical residual in an odorless way.

UVC 222nm is more friendly to human. Studies have shown that wavelengths at 220nm are absorbed by the top layer of the skin, not penetrating deeper into epidermis, causing sunburn or skin cancer. These wavelengths are also potentially safe for eyes with the light being completely absorbed by the cornea, leaving the rest of the eye undamaged.

The Germicidal UVC device shall be grounded electrically. No human or livestock shall be exposed to UVC light. The power shall be turned off before servicing work which can be done only after the lamp and device are cooled down completely. Do not try to service lamp or ballast. Consult a manufacturer’s representative if needed. Wear PPE during maintenance or operation. Read manufacturer’s instruction manual before servicing. Follow all local, national and international safety regulations on UVC.