Light wave oven is also called light wave microwave oven, and it is used in the same way as microwave oven. The biggest difference between it and ordinary microwave oven lies in the heating mode. In ordinary microwave ovens, copper tubes or quartz tubes are generally used as internal barbecue tubes. It is difficult to cool the copper tube after heating, which is easy to cause burns; The thermal efficiency of quartz tube is not too high. Light wave is an auxiliary function of microwave oven, which is only effective for barbecue. Without microwaves, a microwave oven is only equivalent to an ordinary oven. The optical wave furnaces in the market are all combined furnaces of light wave and microwave, which can be operated separately or in combination. In other words, the microwave oven is compatible with the functions of the microwave oven.

Microwave is an electromagnetic wave with a wavelength between infrared and UHF radio waves. The wavelength range of microwave is about 30 cm to 1 mm, and the corresponding frequency range is 1 GHz to 300 GHz. Another classification method says that the wavelength of microwave is between 1mm and 1m, and the corresponding frequency is between 300GHz and 300MHz. Microwave is obtained by the special motion of electrons in a magnetic field.