Photron Hollow Cathode Lamp 1-Element Pr Praseodymium, coded, 4 Pin Socket, 1.5'' / 37 mm, for Agilent (Varian)

All lamp windows are made of quartz glass to ensure optimal transmission across all wavelengths. The fill gas for all hollow cathode lamps is neon; other fill gases are also available upon request at an additional cost.