Voltage 130, Wattage 10, Base E17, Shape S11, Overall Length (mm) 59, Life Hours 5000, Color CERAMIC WHITE, 203B10S11N/FWHITE, Intermediate base-white Reichert/American Optical - 11163 Lensometer - 10S11N/W-130 Replacement Light Bulb - Equipment to Lamp - 203B10S11N/FWHITE - Intermediate base-white