About this item UL Certified Guarantee 100% Safety: Our Halloween string lights were strictly tested and completely fulfill the requirements of UL safety standards with a 30V low output voltage (lower than the maximum voltage safe for humans,36V). The LED bulbs keep at a low temperature state so even after long hours of use they are still safe to touch for children and pets. Just plug into an outlet and use it without worry. Built to Last: Tired of Halloween lights that quit after one season? Our premium LED string lights are built for lasting performance, with reinforced wiring, shatter-resistant bulbs, and weatherproof construction that survive years of use. Super bright orange LED string lights are especially suitable for Halloween scene layout effects. Waterproof Design for Both Indoor Outdoor Halloween Decor: The led Halloween lights are made of premium LED bulbs and sturdy dark green wire which is designed to withstand rain and snow, making it ideal for both indoor and outdoor decorations, such as patio, balcony, garden, dining room, living room, kitchen, etc. Note: the plug is Not waterproof, take care to keep it away from water. Timer & Memory Function: The Halloween decorative lights Built-with timer and memory function, it will automatically turn on for 6 hours then off for 18 hours per day(press the summary for 3 seconds, when the summary turns green, the timer is on); The controller is designed to remember your previous setting mode for your next use. 8 Lighting Modes & Connectable: These orange purple Halloween lights features with 8 lighting modes, includes Combination, In waves, Sequential, Slow Glow, Chasing/Flash, Slow fade, Twinkle/Flash, Steady on. And with male and female safe adapter allows up to 4 strands to be connected together to illuminate a wider area. 4 strands will give you 392ft and 1200 LEDs to use and will only take up one electrical socket.