Microwave incandescent light bulb, 40 Watt. Has 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.
Light bulb 40 watt 120 volt medium standard base. Used in many refrigerators and ranges.
Light bulb, 10 watt. Small screw in base
Fluorescent light bulb, 18 watt, 26 inch