Sodium Vapour Lamp

Suitable For Spectroscopy, Polarimetry, Refractometry And Interferometry. Complete With Vacuum Jacket, Rated 35 Watts. For Producing Highly Intense Monochromatic Light. Each Lamp Has A Glass Envelope With An Inner Discharge Tube Containing The Gas Or Vapour And Two Electrodes. The Envelope Is Mounted On An E.S. Cap, Providing An Arc Center Height Of About 110Mm. Each Lamp Is Fully Interchangeable, Without Any Adjustment. (Sodium Vapour Lamp)