Offer is for 1 Piece of the highest quality Welch Allyn WA-03400 OEM Quality Replacement Compatible Bulb Lamp 03400, 3400, WA03400,WA-03400. Also Known As: WA03400-U, WA-03400U , WA3400-U , WA3400, 03400-U, 03400U , 3400U , 03400-U Lamps are used in the following instruments: Otoscopes-21110, 24031, 24011, 24020, 24000, Illuminators 27200, 27250 This Premium Quality Replacement lamp is Manufactured by Pro Lighting and is Guaranteed to Meet or Exceed the Original Manufacturers Specifications. The use of the Original Manufacturers Name is for Identification purposes only. The name Welch Allyn is trademarked and wholly owned by Welch Allyn. We do not sell or distribute Welch Allyn Products