LG Microwave Incandescent Lamp Light Bulb - 6912W3B002KThis light bulb (part number 6912W3B002K) is for microwaves. Light bulb 6912W3B002K illuminates the surface below the microwave or the interior of the microwave. Because high voltage capacitors in a microwave can retain a lethal electrical charge even when the microwave is unplugged, a service technician should install this part unless the owner's manual includes instructions for installing the light bulbs.