Battery Operated & USB Powered - Just use 3 AA batteries (not included) or USB power supply. Green Neon Lights - Uniquely designed decoration that sheds the boring desk lamp and adds color to the darkest room. High Quality St. Patrick's Day Decorations - There is a base under the lamp, it can be placed on the table stably. Quick and easy to install. Perfect for St. Patrick's Day decorations, for birthday, party, performance, special occasions, etc.