Timer & Memory Function
Press a button to activate the energy-efficient timer mode. The LED light bulbs will shine for 6 hours and then turn off for 18 hours. This creates a simple 24-hour cycle. The window decoration light will keep this cycle until the battery runs out. You don’t need to reset it manually. Your selected settings will also be remembered after unplugging the lights.

Safety & Reliability
These lights are suitable for indoor and outdoor use. They have an IP 44 waterproof rating. The battery-operated outdoor string lights are UL 588, CE, and ROHS certified for safety. They run on 3 AA batteries, which means there is no risk of electric shock. The low-temperature LED bulbs ensure the lights are safe to touch, even after long use. This makes them great for families with kids or pets.

8 Variable Flash Modes
Press the button on the battery box to choose from 8 flash modes: steady on, in wave, fast in wave, twinkle sequential, slow fade and glow, chasing flash, and slow fade and twinkle. These LED fairy string lights can change your porches, pergolas, patios, tents, decks, gazebos, wedding receptions, and romantic dinners into magical spaces with just a switch.

Decorate as You Like
The battery-powered Christmas tree lights offer flexibility for decorating. You can place them anywhere without needing a power socket. This solves the problem of using LED Christmas string lights where outlets are far away. You can easily light up any space you want.