We can refer to the national standard architectural lighting design standards, which are determined by the size and function of the space. For home environment lighting, generally 300LUX for functional areas, 150LUX for rest and watching movies, and 500LUX for reading and learning are the best. It is recommended to take the middle value of 300LUX as a lamp usage, and then arrange the lamps separately according to their functional areas. For example, if it is a 20-square-meter house, the luminous flux required for the whole room is 20㎡×(100~300)LM/㎡=2000~6000LM. The living room and dining room can be 4-5W/square meter, the kitchen is 5-6W/square meter, and the bedroom is 2-3W/square meter.
