How do I adjust the light level in this room?

He adjusted the light levels of the lamp to change the atmosphere of the room.

Visible light is the range of light visible to the human eye.

This lens is used for light concentration.

This lens is used to concentrate light.

I went to Beijing, in China.

He ate three apples.

How was your day, Bob-san?

Yakitori is skewered on a '丳' and grilled.

He turned thirty years old.