I think the differences between the two are as follows:

1. Raw materials and production process: light soy sauce has no additives, and the taste is very fresh with the addition of umami agents.

2. Color: The color of light soy sauce is reddish brown and the taste is very fresh and light brown.

3. Taste: The light soy sauce is rich in flavor and extremely delicious.

4. Usage: Light soy sauce is used for seasoning, and its extremely fresh taste is used for cooking or dipping.