I repair microwave ovens and know something about the structure of microwave ovens. I want to share my views with you. The microwave oven sounds mysterious. What light wave is it? In fact, when you turn on the light wave oven, you will know that it is a light-emitting tube, which uses its powerful light energy to heat food. The intensity of this light shows the power of the picture tube. What's the mystery? You know that electric heating wires can generate heat, you know that quartz tubes can generate heat, and lamps can generate heat. You should also know that different lights can emit different rays and can be used for heating. I say this effect is a matter of heating intensity or heating speed. Light radiation is fast and can reach food quickly, which is faster than the heating source used in the oven (by convection radiation). Just these differences. The remaining effects are the taste when eating, the speed of heating and the loss of heat. It's all about wearing clothes and hats.