1. Wall socket: 4 square for indoor use.

2. Lighting: 2.5 square meters.

3. Toilet: water heater: 4-6 square meters (Yuba), reserved air-conditioning socket line for master bedroom (side bedroom): 6 square meters.

Note: If there are too many kitchen appliances, you can also consider using them: more than 4 square meters. Refrigerator, freezer, oven, microwave oven, induction cooker, soymilk machine. . )