The bulbs were lighting on the screen, as the minutes ticked by.

He flicked it on and weak yellow bulbs lit the enormous space.

If the power is off, the tester's bulb should not light at any time.

The next red bulb had lighted exactly at the right second, as indicated by the moving dial.

There was one, dimly lit, light bulb at the center of each tent.

They raced to finish, so the red bulb on their circuit boards would light.

The bulb lighted again; the next one went out.

If the power is on, the bulbs should light immediately.

The bulbs lit up and it all looked very nice.

If they made contact, a little bulb would light up and he would be that much closer to solving the case.