Unique Pinecone Design: Features C9 LED bulbs shaped like pinecones, larger and brighter than standard C7 and C6 bulbs, offering lower energy consumption and no excessive heat. Extendable Length: Equipped with end-to-end connectors, allowing up to 8 sets of 100ft string lights to be connected and powered by a single plug. Durable Construction: Made with a durable green wire and anti-fall materials for the bulbs, ensuring sturdiness and cool-to-the-touch operation for safety. Weatherproof Durability: Professionally waterproofed and snow-proof, these lights withstand rain and snow, maintaining safety and stability in humid or snowy conditions.