John B Sikeston , MO March 07, 2018 Appliance: Model KENMORE ELITE MICROWAVE #721.7920 Light bulb was out on my Kenmore microwave I ordered he bulb from your online store for half the expense as Sears. It arrived as promised and it works. The replacement was somewhat complicated as Sears enjoys using oddball fasteners and I had to drill a bit off the inside of the Torx head screw in order to allow the torx bit to fit into the screws to gain entrance too replace the bulb. Thanks for your service.. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes