German Bulbs 34V 3W. Screw type German replacement light bulbs - Three (3) - 34V 3W for German Candle arches and Schwibbogen. The bulb measures approximately 1 3/4 inches long from the top of the glass to the metal tip on the bottom and the metal screw in part has a diameter of approximately 9 mm (or 3/8 inch) and the metal part to the end (the entire screw-in part) is about 1/2 inch. You are buying Three bulbs in one pack. From Germany.