The Halogen Lamp is an OEM part for LG microwaves. It illuminates the interior of the microwave, allowing you to monitor the cooking process without opening the door. Common causes of a bad halogen lamp include prolonged usage, electrical surges, or damage from impacts. Symptoms of a bad halogen lamp include: The microwave interior remaining dark during operation Flickering or dim lighting The lamp not turning on at all This OEM LG part is also compatible with some Kenmore models.6912A40002E (AP4457323) replaces 383EW1A077A, 383EW1A077B, 6912A40002A, 1462319, 383EW1A077D, AH3530398, EA3530398, PS3530398.