D2 Lamp for Waters Alliance 2487 UV/VWD is manufactured under the brand name of Cyberlab. Deuterium arc lamps are used in high pressure liquid chromatography (HPLC) and UV Spectroscopy. It is used as a low-pressure gas-discharge light source in case a continuous spectrum in the ultraviolet region. Generally, these lamps have a shorter life span, but this can be remedied using some modifications. The principle of operation is based on the creation of an arc from the tungsten filament to the anode. This arc excites the deuterium molecules to a higher energy state and when it returns to the lower energy state, it emits ultraviolet radiation. It is important to use eye protection when using a D2 lamp.Product name: D2 Lamp for Waters Alliance 2487 UV/VWDSpecifications: Equivalent to P/N WAS081142