Innoo Tech L1804-Y-02 String Lights, Warm White [SOLAR POWERED CHRISTMAS STRING LIGHTS]: Solar Powered Globe Lights with Built-In 600ma NI-MH Batteries, Energy-Saving and Environment Friendly [2 Switch buttons]: POWER ON/OFF - after switch turned on, can automatically light control and charging, auto on at night, auto off in the daytime; 2 MODE - Steady on / Flash (Flashing mode convert switch) [Design for you]: 50 LEDS/ 21ft Solar String Lights, Ideal to create a magical and attractive feeling for Indoor / Outdoor Christmas tree,gardens,camping ,yard, wedding,party [Easy to Operate & Install]: NO WIRING and EXTRA BATTERY Required, recharged by solar panel under sunlight and turn on at dusk automatically,totally Eco-friendly product. [Waterproof designed product]: It will not affect the using during rainy day or moist environment, suitable for both outdoor indoor application