?【IP65 Waterproof Grade String Lights】Svater string lights are designed to withstand the wear and tear of year-round outdoor use. They are made with robust and weatherproof wire construction which can keep water and rain out. It's durable ennough to withstand extreme temperatures, rain, wind or humid climate. ?【Connectable up to 40 Strands】Super easy to install.Each String lights are equipped with female plugs to easily connect end to end up to maximum 40 strands. You can customize your arrangements to create a festive flair. Svater outdoor light chains are perfect for any environment. ?【Eco-friendly & Energy Saving】30 x 2W E27 S14 LED glass bulbs included. Svater LED bulbs save over 90% energy over incandescent bulbs. Long lifespan of more than 30,000 hours can reduce maintenance costs on changing bulbs frequently. Comes with 2 Pack of 49ft making it perfect length for use indoor or outdoor.