The "bright lintel" door is the hub of life, which should be bright and not dark. If it is dark inside and outside the gate, it will dim, disadvantage and hinder the family's career and wealth. It is best to install lighting, which can shine on the gate. Induction lamp with energy-saving effect can also be installed, or a "wall lamp" can be installed on the outer wall of the gate. Ordinary commercial shops should pay special attention to the feng shui of the gate, because the gate is the only place where all customers often go in and out, and it is also the entrance of wealth. The gate should also be bright, so that people can prosper.