Microwave incandescent light bulb, 40 Watt. Comes with small screw in base. If the light bulb threads are corroded, or the bulb base is too large, the socket may also need to be replaced.
40 Watt frosted appliance light bulb.
25 watt light-bulb for various appliances, 120 volts, small base screw-in. Bulb has been updated and you may need the recommended socket to install this light bulb.
40 Watt Halogen Light Bulb
Light Bulb & Housing Asseembly, 40 Watt