Features: SAFE TO USE: For indoor and outdoor use, easy to set or wrap. Very safe, good heat radiation and never go hot. BATTERY OPERATED: Powered by 3 * AA battery. Very flexible to place this light around everywhere. No worries about the extension cord and plug will limit you. SEVEN LIGHTING MODES: Either steady or flash. There are 6 flash modes and a steady mode. Change the flash mode by pressing the button on the battery box. TIMER FUNCTION: The light will stay for 24 hours, your can press 2H, 4H, 6H, 8H button for timing with a remote control. Then the light will work on certain hours everyday once you set the working time until the end of the battery life. FANTASTIC AND MAGIC EFFECT: 3 meter / 10ft and 40 LEDs. The copper string light is very light and the thin string is almost invisible when install on somewhere.