Heraeus Noblelight chromium (Cr) single-element hollow cathode lamps are quick to reach equilibrium performance, offer a long-term constant light intensity, and low noise with good calibration. Inside each lamp, there is a high volume of inert gas to increase the lamp’s lifetime to 5000 mA hours. Choose from coded lamp versions for Perkin Elmer®, Varian/Agilent, and Unicam systems.