1.   As the floor levelled off the lights flickered and came up, the engine noise settling down to a steady background roar.

2.   Behind his closed lids, light flickered orange, pink and then black.

3.   Its light flickered on and off for a moment, as if it was making itself comfortable in a mechanical kind of way.

4.   Lights flicker on throughout the house at the touch of a single button.

5.   The lights flicker off and on, off and on, the signal that the library is about to close.

6.   The lights flickered and dimmed as the blast from a nearby explosion momentarily disturbed the smooth running of the generator.

7.   The overhead lights flickered momentarily.

8.   The overhead lights suddenly flickered and went out.

9.   Its lights flickered at random and it made odd beeping noises.

10.   Little lights flickered from the interior of his dome and a communication unit on his chest crackled with static.