Ophthalmoscope - Boehm 3.5v.
Manufactured by Boehm. Halogen bulb that is 3.5 volts and 2.52 watts. T1.5 shape with a diameter of 6.3mm and overall length of 0.85". Single contact 8mm flange base with clear finish. For use with Welch Allyn dermatoscope, direct ophthalmoscope and retinoscope.