The Welch Allyn 3.5v Nasopharynx Illuminator comes with a halogen HPX lamp that provides 30% more light output for true tissue color and consistent, long-lasting illumination. Its fiber optic light transmission produces cool distal light. It comes with wide-angle rotatable mirrors with pilot aperture. Halogen Larynx Illuminator Light passing through the aperture will illuminate the palate and pharynx to assist in positioning the mirror. The metal sleeve and mirror are removable for sterilization. It is fully sterilizable with steam, water, gas, and solutions.