we are committed to providing the fastest delivery of high quality, high spectral purity hollow cathode lamps and other consumable parts at the best available prices. We are able to supply more than 70 different hallow cathode lamps of both 37mm (1.5″) and 50mm (2″) diameter, a variety Deuterium lamps and High Intensity Hallow Cathode Lamps for use with most available spectrometers. Features : » High Intensity HCL 50mm (2″)» HCL 50mm (2″)» High Intensity » HCL 37mm (1.5″) » Deuterium Lamp (Background Correction)