Lamp (noun)

1. A device for giving light, typically powered by electricity or a light bulb, and mounted on a stand or fixed to a wall.
2. A portable device for giving light, typically powered by a burning wick in oil or wax.

Origin:

Middle english: from old french lampe, from latin lampas, lampad- "torch", from greek.

Examples:

1. He switched on the lamp.
2. The lamp on the table.
3. The lamp on the nightstand.
4. The lamp on the wall.
5. The lamp provides a soft light.