Incandescent A-shape light bulbs come in a variety of sizes and wattages that are perfect for general lighting purposes. To help you find the right bulb for the right application, see Westinghouse Lighting™s full offering of standard A-shape light bulbs including Long Life, Non-Stick and Commercial Service varieties. A-shape light bulbs are available with medium, intermediate and candelabra screw bases making them compatible for use with standard household fixtures -- everything from table lamps, ceiling fans and appliances to porch lamps and outdoor lanterns.Available in multiple wattages, volts and finishesLight bulb sizes include A15, A19, and A21 typesDesignated A15 light bulbs are perfect for use in appliances and ceiling fansNon-stick light bulbs feature a coated base that prevents corrosion of socketsCompletely dimmable