Not so good. Because doing so will bring harm to fireflies, there are also certain security risks. First of all, fireflies are creatures. They need to breathe air and food freely to maintain their lives. Trapping them in their pockets will affect their normal physiological activities, leading to death or injury. Secondly, using fireflies as lights at night may attract other insects and wild animals and increase their risk of being attacked by natural enemies. In addition, some fireflies are endangered species, and if they are over-captured and imprisoned, they may even pose a great threat to their living conditions. Therefore, we should respect nature and care for the ecological environment, and don't catch and destroy wild creatures such as fireflies. If outdoor activities need lighting, it is recommended to use other suitable lamps, such as flashlights, headlights, camping lights, etc. , to ensure adequate lighting and safety.