UV tubes from Analytik Jena (UVP, Inc.) . have many, many hours of use but they will wear out eventually. Have a replacement for your UVG-54, UVGL-58, UVG-47 or 3UV-36 handheld UV lamp standing by.
Return Policy: Ultraviolet lamps from Analytik Jena (UVP) have a 20% restocking fee.
