The Welch Allyn/Hillrom 06200-U is a halogen replacement lamp designed for use in Welch Allyn diagnostic instruments, specifically the Audioscope and certain screening audiometers. Operating at 3.5 volts and 2.4 watts, this compact T2 single-ended bulb delivers bright, reliable illumination essential for accurate diagnostic performance. It has a slim form factor, with a diameter of approximately 6 mm, making it suitable for precise medical applications. The lamp is typically sold individually and was engineered to provide consistent light quality during examinations. However, it is now listed by Hillrom as obsolete, with no direct LED replacement available. Despite this, it remains an important component for legacy Welch Allyn equipment still in use.