Voltage 5, Wattage 2, Base E5, Shape T1.5, Overall Length (mm) 17MM, 1009-S, 5V-2W FIXATION E5 BASE, Manufacturer: Haag Streit Marco - 1009-S Slit Lamp - 1009-S Replacement Light Bulb - Equipment to Lamp - 1009-S - 5V-2W FIXATION E5 BASE - Manufacturer: Haag Streit