300W Ceramic Xenon 14V Rated Replacement for the PE300BF, this is a 5 hole pulsed version. 300W Ceramic Xenon Scientific Medical Lamp. The Excelitas UXR 300 lamp is often used as Fiber Optic Illuminator in medical/scientific applications our UXR ceramic xenon lamps are highly efficient, pre-aligned parabolic reflectorized lamps for use in numerous scientific and medical applications. The UXR features strong output reliability over life, highly stable 6000K color temperature, a compact and rugged ceramic to metal seal manufactured body with a 500-hour fully-backed warranty. Manufactured at our ISO-certified plant, all UXR lamps are built to high quality standards.