Five Light Chandelier from Breton collection in Aged Brass finish. Number of Bulbs 5. Max Wattage 4.00. No bulbs included. The glassmaker`s craft of using an " optic mold" to create desired interior textures and designs was invented by Roman glassworkers and flourished in Venice in the Middle Ages. Using this ancient " optic" technique, we house a glass bulb in a hand-blown oval diffuser. This diffuser is perfectly clear on the outside with a wavy horizontal pattern worked in its bulb-facing side. These interior lines are in the " optic" tradition, valued in heritage pieces such as Depression glass. No UL Availability at this time.