permanent glow lamp

例句：

1. 1. This lamp is designed to provide a long-lasting and energy-efficient lighting solution.
   这款灯设计用来提供持久且节能的照明解决方案。
2. 2. The permanent glow lamps were installed in the classroom to enhance the learning environment.
   永久发光灯被安装在教室里，以增强学习环境。
3. 3.The lamp was so bright that it could be seen from across the room.
   这个灯太亮了，从房间的另一头都能看见。