灯号

例句：

1. 1.The traffic light is red, and we must stop here.
   交通灯是红色，我们必须在这里停下。
2. 2. The new LED lights have a brighter color temperature than the old ones.
   新的LED灯比旧的有更明亮的色温。
3. 3. The bulb burnt out, so I replaced it with a new one.
   灯泡烧坏了，所以我换了一个新的。