[nico_h]

Probably not enough margin in microwaves ovens to justify putting GaN stuff in it yet. Maybe for premium products. Bigger volume! Silent operation! More efficient!

[nick49488171]

Would it be silent? A lot of the noise sounds like transformer noise which you would still get

[snops]

It would be operating off rectified DC (like an induction hob) or using a SMPS operating at ultrasonic frequencies to deliver a lower DC voltage, you wouldn't get the 50Hz buzz even if there was a transformer.