Timer & Memory. Super Bright with Upgraded LED Bulbs. Extendable 300 LED Lights Are Able to Turn on or Off Automatically with the Timer & Remember the Last Pattern with the Memory Function. Christmas Decorations & Christmas Gifts. with Such Beautiful Christmas String Lights, They Will be Happy with Such Romantic Atmosphere & Like the Fantastic Scene. It is Time to Add a Festive Looking to Your Family. Extendable & Safer. 5-30v Low Voltage Plug with Ul Certified, Safer Than Without Ul Approval, Could be Extended Up to a Maximum of 5 Light Chains(max 1000 Led). Great Decor for Christmas Holiday Party, Wedding, Thanksgiving Day, Bedroom Decor, Indoor Outdoor. Widely for Christmas Tree.