oem panasonic microwave light bulb lamp specifically for nnsd681s, nn-sd681s, nnsn643s, nn-sn643s, nnsn651b, nn-sn651b panasonic installation instructions do not accompany this part! this microwave light bulb is for the the following panasonic microwaves: nnsd681s, nn-sd681s, nnsn643s, nn-sn643s, nnsn651b, nn-sn651b if your microwave is not listed above, please send us a message so we may help you obtain the correct part!