The short-wave light with wavelength 256 nm is used to detect phosphor characteristics/bands on stamps (eg UK and U.S. stamps). MINI-UV-Test Lamp, short-wave 256 nm, 4 W

The long-wave light with wavelength 366 nm is used for testing Security papers or fluorescent paper, varieties and banknote. MINI-UV-Test Lamp, longwave 366 nm, 4 W

The short-wave light with wavelength 256 nm is used to detect phosphor characteristics/bands on stamps (eg UK and U.S. stamps). Prinz UV-Test Lamp, mains powered 220-240 V /4 W, short-wave, 256 nm

The long-wave light with wavelength 366 nm is used for testing Security papers or fluorescent paper, varieties and banknote. Prinz UV-Test Lamp, mains powered 220-240 V /4 W, longwave, 366 nm

for 2051 and 2069

for 2050 and 2068