This frosted 2.5V halogen bulb (WA-04800) delivers bright, reliable illumination for Welch Allyn laryngoscopes. It is compatible with Series 664, 680, 634, 674 (sizes 2–4) and Series 690 and 692 (sizes 3–4). Perfect for veterinary clinics and animal hospitals, this replacement lamp helps keep your laryngoscope ready for exams and procedures. Supplied as a single bulb, it’s easy to stock as a spare and maintain consistent performance.