ALWAYS ON LIGHT UP FOR THE CIRCUIT STRUCTURE: ✨✨✨When one or more bulbs are damaged, fall or extinguish, rest light bulbs are still bright as normal. The whole string lights will always on light, unless it's unplugged. | UL 588 SAFETY CERTIFIED: All of our products have the complete North American UL CERTIFICATION. All the components of the CXTW 22AWG GREEN WIRE, LEDs, plug, and tail plug have UL certification. | FOR INDOOR AND OUTDOOR USE: Each set 50 feet length and 150 count super bright PINK LEDs, 4 inches spacing, AC 120 volts, 19.8 watts, you can be end to end connect to 10 sets (500 feet), perfect for decorating your indoor or outdoor party, Easter, Halloween, Thanksgiving, Christmas, balcony, courtyard, eaves, trees. | HIGHLIGHTS ENERGY-SAVING LED: Make full use of the LED new light source technology, the service life is up to 30,000 hours. Energy saving 70% and 30% brighter than normal incandescent lamp. With classic Christmas bulb shape and PINK LEDs, in the holiday night, you and your family and friends can fully enjoy happy time for festival. | OUR RESPONSIBILITY AND COMMITMENT: If there is any quality problem with our products, you’re very welcome to contact us. We offer a full refund or a replacement with a brand-new product service.