200 LEDS & SUPPORT UP TO 4 STRINGS END-TO-END CONNECTABLE: With 200 colorful LED lights on a thick, sturdy cable, each string has an end-to-end connector, allowing you to connect up to 4 strings maximum (TOTAL 1200 LEDS, 420FT) for larger coverage if needed. DURABLE/STURDY/WATERPROOF - Made of high-quality Pvc + LED B lights, these Christmas tree lights are durable enough to withstand all forms. These Christmas tree lights are waterproof, you can use them outdoors for all types of decoration without worrying about rain saturation. (Please note that the power adapter is not waterproof, it should be covered on rainy days.) 100% UL CERTIFIED & SUPER SAFE TO USE: This light string has passed UL certification and has been approved for sale. Not only the light string as a whole (including each part: Cable, LED, connector) has passed UL certification, ensuring safety in use. 8 MODES AND MEMORY FUNCTION LIGHT D CHRISTMAS TREE: Just press the button on the socket to switch between combination, wave, sequential, slo-glo, chase/flash, slow fade, twinkle/flash, and steady on. This LED light string can automatically remember your last setting. Perfect Christmas tree lights for bedroom, wedding, party, garden, patio, all indoor and outdoor decorations! BEAUTIFUL CHRISTMAS LIGHTS: Tree lights Perfect Christmas lights, outdoor Christmas lights, indoor Christmas lights, Christmas tree lights, indoor string lights and string lights for bedroom, wedding, party, garden, patio, all holiday decorations! Package size: 16cmx9cmx8cm. Light color: colorful. Style: 20 meters with 200 LED lights. Quantity delivered: 1 room.