The Second Source is a leading Distributor of Replacement Lamps for a Wide Variety of Equipment: Microscopes, UV/Vis Spectrophotometers, HPLC Systems, Gas and Liquid Chromatography, Germicidal Radiators, Air Purification, Infra-Red Dryers, Photo Ionization Detectors, Atomic Absorption, Transillumination, Graphic Arts, Endoscopes, and many others!