Up for sale is a rare, vintage New Old Stock Original Hanau D 902 T Deuterium Lamp, preserved in its original blue Imaging & Sensing Technology (IST) distributor box. Manufactured with premium precision engineering in West Germany, this high-stability D₂ arc lamp provides continuous ultraviolet spectrum emission for legacy laboratory instruments. It is a crucial replacement part for vintage UV-Vis spectrophotometers, liquid chromatography detectors (HPLC), and analytical equipment requiring a highly stable UV light source.