Lighthouse Dual UV Lamp - 325178
This handy UV lamp combines two functions in one device, allowing collectors to test for both fluorescence (Shortwave) and phosphorescence (Longwave) stamp varieties.
Beyond stamp identification, this Switchable Dual UV Lamp is a useful tool for detecting stamp repairs and hidden faults. A simple switch allows you 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).