This handy UV lamp combines two functions in one device, allowing to test for both fluorescence and phosphorescence found in specific postage stamps.
Phosphorescent compound visible under ultraviolet light used to "tag" stamps for use by automated mail handling equipment. This handheld lamp is a great tool to view these tags safely.
This versatile precision UV lamp combines two functions in one device: stamps, bank notes, credit cards, telephone cards, etc. can be examined for both fluorescence and phosphorescence. Switch allows to change quickly and easily between short and long UV rays (254 and 380 nm).
Battery operated: 4x AA (not included).
4 watt (254 nm) or 3-4 mW (380nm).
Switchable dual UV Lamp L 81