How to explain the magical light bulb lighting itself?

It's simple. The question is, is it still interesting after the magic is revealed? Will you go to see this magic trick if you know the answer? Sometimes mystery is not bad at all. When the mysterious veil is lifted, everything will become boring.

If you want to know, there is a button cell on the base of the light bulb, which can make the light bulb glow by itself when there is no electricity. Prop dealers are very creative. They can be used as ordinary bulbs in ordinary desk lamps, or they can make the bulbs glow by themselves when they are taken away, but they need to be lit by magnetic force, so you will find the magician holding a magnetic ring in his hand. When the hand wearing the ring is close to the light bulb, the light bulb will light up, but it will not light up when it is handed to the audience.