The characteristics of UVC germicidal lamp is radiating mainly short-wave ultraviolet rays of 253.7nm(UVC). The UVC has strong destructive effect on DNA organization, inhibiting pathogen reproduction, and causing to die of germs; Germicidal Uvc Lights are commonly seen in various water treatment systems to deal with sewage, waste water, fish tank water, drinking water, ultra-pure water, purified water, swimming pool water and so on. Before installing Led Germicidal Lamp, the lamp shall be connected before being powered on to confirm that the lamps will be on before installing them. In case of trouble caused by transportation or other reasons after installation, the lamp will not be on and then checked.