DESC: Features:Halogen HPX lamp for 30% more light output for true tissue color and consistent, long-lasting illumination.Rotating lens with ultra-seal allows for pneumatic otoscopy.Fiber optic illumination produces cool light.For Use with Welch Allyn 3.5v HandleProduct Information:The Welch Allyn 3.5v Pneumatic Otoscope without Specula Head Only (Model 20201) - Ultra-Sealed for Pneumatic Otoscopy. An instrument that provides 30% brighter, whiter light output and a rotating lens with ultra-seal for pneumatic otoscopy. Key Components: 3.5v Pneumatic Otoscope without Specula (Head Only) 3.5v Halogen Lamp Warranty: Welch Allyn will repair or replace, free of charge, any parts of its own manufacture proven to be defective through causes other than misuse, neglect, damage in shipment, or normal wear.Shipping Weight:1lb