【Battery Christmas String Lights with Remote 】- Powered by 3 × AA batteries ( not included ), the christmas string lights with each is 15 feet long with 30 LEDs. Each bulb is about 1.3 inches wide with durable, waterproof plastic construction. 【 8 Lighting Modes 】- There are 8 different modes for the lights, including waves, sequential, slow glow, flashing, slow fade, twinkle, and combination, as well as standard on and off. It can be controlled by the remote or the button on the battery box. 【 Handy Remote Control 】- The string lights come with a remote control, allowing you to quickly turn the lights on and off, select from 8 flashing modes, adjust brightness, and set a timer for 6 hours across the room with a 10-meter-long working range. 【 Waterproof and Adjustable Brightness 】- IP65 waterproof wire and bulbs could decorate indoors and outdoors. you can hang them over a christmas tree, front porch, doorway, window, or fireplaces. christmas decorations