These Premier Decorations 100 LED Battery Operated LED Lights with Timer will brighten up your home this Christmas. Highly suitable for any Christmas display either indoor or outdoor. These LED lights come with an energy efficient timer; 8 hours on, 16 hours off and 8 settings including static. With no plugs, it means no mess. No wires from the socket allows you to simply hang anywhere inside or outside your home. Good batteries should last 30 days in these energy efficient light bulbs.