Believing in Buddhism requires placing ever-burning lamps at home, usually on both sides of the Buddha statue at home. The specific placement position is definitely not fixed, but the meaning of the ever-burning lamp is better, which can increase people's life span, so many old people will put the ever-burning lamp in their homes now.
Although there is not much scientific basis for these statements, they would rather be believed than credible, which is also a part of China's traditional culture. In fact, most young people now don't believe in these things and pay more attention to science.