LZ, with light wave function, is equivalent to "barbecue" ~ its heating method is from the outside to the inside, similar to an oven.

Light wave is an auxiliary function of microwave oven, which is only effective for barbecue. Without microwaves, microwave ovens are only equivalent to ordinary ovens. The optical wave furnaces in the market are all combined furnaces of light wave and microwave, which can be operated separately or in combination.