UL588 Certified & IP44 Waterproof for Ultimate Safety.JOIEDOMI's outdoor Christmas lights are UL588 certified and rated IP44 waterproof, meeting the highest US safety standards for seasonal decorative lighting. Built with built-in fuses and superb craftsmanship, these string lights withstand rain, snow, and harsh weather, ensuring safe indoor and outdoor use for your family and home.

Super Value Pack: 100 Warm White Bulbs on 21.4ft Wire.Get brilliant coverage with 100 warm white T5 bulbs on a 21.4 ft white wire, offering a lighted length of 19.4 feet with 2.36-inch spacing. These high-voltage Christmas lights provide dense, vibrant illumination perfect for wrapping trees, lining roofs, or decorating mantels with a classic holiday glow.

Connect Up to 5 Sets for Expansive Displays. Maximize your decorating power! These connectable Christmas lights feature end-to-end connectors, allowing you to link up to 5 sets for over 100 feet of continuous lighting. Perfect for covering large outdoor areas, staircases, or hallways without multiple power sources.

All-Weather Durability & Independent Bulb Design.Engineered for reliability, these independently wired bulbs ensure if one burns out, the rest stay lit! Designed with premium materials to endure outdoor conditions, and includes spare bulbs and fuses for easy replacement—ideal for long-lasting seasonal and year-round use.

Versatile for Indoor & Outdoor Holiday Decor. From Christmas trees and wreaths to weddings, parties, and patio displays, these white wire lights adapt to any setting. Use them indoors on windows and stair railings or outdoors on fences and shrubs to create a warm, festive atmosphere instantly.

BUY WITH CONFIDENCE: With durable insulated wire, our product could be used for long time.If the one you received fail to work, “Contact Seller” and we will return you or ship you a replacement. We stand behind our Products!