Being cordless, there won't be any annoying wires to trip over. You can take it with you to any room in the house, even outdoors. It's also very practical in case of a power outage. These lamps are generally lightweight, fairly small, and feature an economical and environmentally friendly LED.
You should choose your cordless lamp based on how you'll use it. If you want to place it on a bedside table, you'll need a softer light. For more general lighting, you'll need a more intense light. If you plan to move it around regularly, opt for a fairly classic style that will fit into any room of your home.