Westinghouse Incandescent specialty A-shape light bulbs are perfect for general or creative lighting needs. These light bulbs come in a variety of wattages and styles. To help you find the right bulb for the right application, see Westinghouse's full offering of specialty A-shape light bulbs including colored, Bug Light, Toughshell, Rough Service, Garage and Low Voltage varieties. A-shape light bulbs are available with medium screw bases making them compatible for use with standard household fixtures - everything from table lamps, garage door openers and work lights to porch lamps and outdoor lanterns.