Outdoor Solar String Lights by FirstLights &ndash; Christmas Patio Waterproof Lights &ndash; 39 feet &ndash; 100 LED Powered Fairy Lights &ndash; Cool White NO BATTERIES NEEDED - Completely powered by the sun. Includes compact solar panel and stake. 100 WHITE LED LIGHTS- No more burnt bulbs. Lasts 5-8 hours when charged on a clear day. 10,000 hours of estimated use. Brighten your yard, patio, Christmas tree easily! (Seasonably and geographically variable) WEATHER PROOF - Durable in rain and snow. No need to remove lights during winter season. ZERO UTILITY COST - Solar powered, after a few months, these string lights pay for themselves MONEY BACK GUARANTEE + BONUS EBOOK - After purchase, you will be emailed a bonus EBook "Natural Home Decorating". You are also protected by our 6 month money back guarantee. Any issues and receive a hassle free exchange or refund