The flame of the electric candle in front of the Buddha will have a swaying effect, which is controlled by a built-in micro motor or electronic chip. This rocking effect is designed to simulate the real candle flame. The electric candle in front of the Buddha usually has no swaying effect because it is static.

Some high-end electric candles in front of the Buddha may have the effect of simulating real candles, including flashing, swaying and extinguishing, which makes people feel the flickering of candlelight. This effect is achieved by the built-in circuit and motor, which usually needs battery power supply.