The Welch Allyn Ophthalmoscope HPX halogen lamp provides 30% brighter, whiter light than standard bulbs, for true color and consistent, long-term use. Polarizing Filter eliminates corneal reflections Red-free filter switchable at each opening. Micro, small, and large spot, redfree, fixation filter and slit light. 28 focus rings lenses (-25 to +40 diopter).
Welch Allyn Reference. 11710