Hi John, Thank you for your question. It is always best to use the parts listed or rated for your appliance. The part number for the light bulb listed under your model number is PS3530415. I hope this helps. Thank you and have a great day!

Hello Peter, Thank you for the question. The base is a E26 Medium Standard Base. Thank you for your inquiry, good luck with this repair!

Hello Kate, thank you for your question. The underneath bulb, or nightlight bulb is PartSelect Number PS3530415. Please enter the part number into the site for current price and availability. Good luck with your repair!

Hi JoAnn, Thank you for your inquiry. If the new light bulbs are not coming on you will need to check to see if the problem is with the light sockets or the wiring the light sockets are connected to. I hope this helps. Thank you and have a great day!

Hello and thank you for writing. No, it is not. This is a light bulb and it is a part of your microwave. This bulb uses 30 watts, operates on 125 volts, and is an incandescent lamp. The function of this bulb is to illuminate the surface underneath and inside of your appliance while the door is open, and during a cooking cycle. You will need to replace this part if your door is open and the light is not activated. We recommend that you unplug your microwave and leave it inactive for some time before making this repair. Proceed with caution as the capacitors in a microwave can hold dangerous electrical charges for long periods of time even when the appliance has been unplugged. We hope this helps. Please contact us anytime if you require further assistance.

Hello Susan, Thank you for the question. I suggest testing the sockets with a multi meter to see if they have continuity. Hope this helps!

Hi Kelly, The function of this bulb is to illuminate the surface underneath and inside of your appliance while the door is open, and during a cooking cycle. I am unsure if this is the nightlight bulb you are referring to, it is the only bulb I could find for this model however. If this dose not sound like the bulb you are looking for I would contact the manufacturer directly. Thank you for your question and good luck with your repair!