100% UL CERTIFIED ♥ This string lights has passed UL certification and has been approved for sale. Not only string lights as a whole has passed UL certification, its raw materials and accessories such as wires and plugs are UL certified products. High quality certified products ensure the safety of you and your family.

STILL LIT ♥ Series-parallel circuit structure, when one or several of the bulbs are damaged, dropped, and extinguished, the other bulbs still work normally, and the power, voltage, and current of the entire circuit are not affected. Yes, even if individual bulbs are damaged, but the entire strand of lights will never go out, unless you cut off the power.

END-TO-END CONNECTION ♥ Each bulb is 4 inches apart and the total length of the string lights is 66 feet. Each string is made with a male and female plug, you can connect up to 10 strands end-to-end to reach a length of 660 feet. Custom arranges your lights and create a festive flair, enjoy the illumination at any venue indoor or outdoor.

TRADITIONAL STYLE ♥ Eco-friendly LED light source up to 90% energy savings over standard super bright lights, Long lasting up to 50,000 hours bulb life. The bulbs use the same shell as traditional incandescent Christmas lights, unique blue color, relaxing and bright. enjoys the energy-saving and technological applications of LED lights, while maintaining the Christmas tradition.

DURABLE ♥ The string manufactured with top quality commercial grade 22AWG wire. Pure copper electric core, fast conduction, low heat, tough and sturdy, not easy to break apart, it can be reused for many years. waterproof design make it can be used both indoor and outdoor. If the product you purchased has any quality problems or you are not satisfied with it, please contact us directly. We will replace it with a new item or full refund, make sure you are 100% risk free shopping!