Genuine original equipment manufacturer (OEM) parts. This bulb (part number 5304500304) is for microwaves. Bulb 5304500304 illuminates the surface under the microwave or the interior of the microwave. Because the high-voltage capacitors in a microwave can retain a lethal electrical charge even when the microwave is unplugged, a service technician must install this part unless the owner's manual includes instructions for installing the bulbs. For Kenmore and Frigidaire.