These bulbs are available in a variety of shapes, styles and wattages. To help you find the right bulb for the right application, see Westinghouse’s full offering of low voltage light bulbs including A-shape, Decorative, S-shape and T-shape varieties. Low voltage light bulbs are available with medium, candelabra, wedge and single contact bayonet bases making them compatible for use in fixtures and/or appliances that require low voltage — everything from under cabinet lighting and indicator lights to outdoor deck lighting and walkways.