The Introduction of UV-LEDs have made high intensity, battery powered UV lamps practical due to their low power consumption and high intensity.
These LEDs are narrow band UV (365nm wavelength) emitting virtually no visible light and not needing a Woods Glass Filter*. Other attributes include: Instant On/Off, low heat, low power consumption, high output, low degradation over time and 30,000 hour typical rated bulb life. *except to meet specific specification requirements.