This set of gorgeous LED battery operated timer lights come in a multi-coloured style and at a length of 19.9m. 3xAA are required (not included) - The lights can be used either indoors or outdoors which means you can transforms any space you wish! The timer function can be used to have the lights on for 8hrs and off for 16 hours. 8 CHASER LIGHT MODES - You can choose from Combination, Sequential, Chaser Flashing, Twinkle Flashing, Waves, Slow Glow, Slow Fade and Steady On to create the perfect atmosphere for any occasion.