UV tubes from Analytik Jena (UVP, Inc.) have many, many hours of use but they will wear out eventually. Have a replacement for UVG-4 Minilamp, UVGL-25 or the UVG-11 Compact Lamps standing by. Six inch overall length. Double prongs on each end.
Return Policy: Ultraviolet lamps from Analytik Jena (UVP) have a 20% restocking fee.