Welch Allyn 3.5 V Halogen HPX Lamp for Otoscopes (#20000, #20200, # 20202, #21700, #25000, #25020, #25200), Illuminators and Transilluminators (#26530, #26538, #27000, #27050, #41100, #43300), Tongue Blade Holder (#28100), and 3.5 V Handle Adapter (#73500)