The Lamp is an OEM part for Samsung microwaves. This component illuminates the interior of the microwave when the door is open or during cooking, allowing you to monitor the cooking process without opening the door. Causes of a bad lamp can include burnout from regular use, electrical issues, or physical damage due to impact or mishandling. Over time, the filament in the lamp may wear out, leading to the need for a replacement. Symptoms of a bad lamp include: The interior of the microwave not lighting up Flickering light during operation Complete failure of the light to turn on This OEM Samsung part ensures proper visibility inside the microwave for efficient and safe cooking.This part fixes the following symptomsbroken bulb4713-001013 (AP4051343) replaces 2029140, PS4132129.