Voltage 6, Wattage 27, Amps 4.5, Base E14 W/ RING 44MM, Shape S11, Overall Length (mm) 64, Filament C-6, 2350/OP2366 770J, Haag Streit 6V-4.5A 9-Hole Ring Basse Burton - 1000/1000 Slit Lamp - HS366 - Replacement Light Bulb - Equipment to Lamp - 2350/OP2366 770J - Haag Streit - 6V-4.5A 9-Hole Ring Base