Riester 10592 3.5 V XL Bulbs, Otoscope Uni and Bent Arm Illuminator
Riester offers lamps in different light qualities: 2.7 V vacuum lamps, XL 2.5 V xenon lamps with considerably stronger and whiter light, as well as particularly light intensive XL 3.5 V xenon lamps for conditions similar to daylight.