UV tubes from Analytik Jena (UVP, Inc.) have many, many hours of use but they will wear out eventually. Have a replacement for UVSL-14P Minilamp or UVGL-15 Compact Lamp standing by. Six inch overall length. Double prongs on each end.
Return Policy: Ultraviolet lamps from Analytik Jena (UVP) have a 20% restocking fee.