Solar Rope Lights, 33ft, Waterproof, 100leds, 1.2 V, Portable, with Light Sensor, Outdoor Rope Lights, Ideal for Christmas, Wedding, Party (Blue) Environment-friendly products, 17 percent high energy conversion rate. No cost electricity. By solar panels under the sun, and did not replace the battery. Waterproof. IP65. Suitable for outdoor applications With ON/OFF,MODE switch. Two light modes:Flash light and steady-on light Easy to install. No wiring required