The Light Bulb is an OEM part for GE microwaves. This bulb illuminates the interior of the microwave during operation, enhancing visibility so you can monitor the cooking process without opening the door. It is designed to withstand the high temperatures and vibrations typically found in microwave ovens. Over time, the light bulb can burn out or become damaged due to the harsh environment of the microwave. Frequent on and off cycles can also shorten the lifespan of the bulb. Replacing a non-functioning or dim bulb will restore visibility and improve the functionality of your microwave. Symptoms of a bad light bulb include: Dim lighting inside the microwave.  Flickering or inconsistent performance. Complete lack of light when the microwave is operating. This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.WB36X10003 (AP2029997) replaces 259682, 35156, 40S11N, 40S11N/1, AH247209, EA247209, PS247209, WB02X4235, WB02X4253, WB06X0015, WB2X4235, WB2X4253, WB36X0003, WB36X0821, WB36X0822, WB36X0898, WB36X0936, WB36X10306, WB36X3, WB36X821, WB36X822, WB36X898, WB36X936, WB6X15, WB6X15R.