D2 Lamp for Shimadzu SPD10A/VP is manufactured under the brand name of Cyberlab. The deuterium arc lamps are used in spectroscopy and high pressure liquid chromatography (HPLC). It provides for a continuous spectrum in the ultraviolet region. It is a low-pressure gas-discharge light source. This lamp emits a radiation of wavelength between 112 nm and 900 nm. 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 Shimadzu SPD10A/VP Specifications: Equivalent to P/N 228-34016-02