Using the energy of the sun, our solar powered LED Solar Christmas Strands can be placed practically anywhere without messy wires or the need of nearby outlets. Our unique Outdoor Holiday Lights use sunlight as an energy source, eliminating the need for AC plugs - they can be hung anywhere that is exposed to direct sunlight. All of our solar products will stay illuminated for 8-12 hours depending on lighting conditions, and turn on/off automatically via the built in light sensor. Available in red, white, blue, green, or re/green, each string includes ultra-bright LED's rated at over 100,000 hours of life. Includes LED Light String, rechargeable batteries, solar cell/electronics box, mounting brackets and instruction manual. " Solar power - Converts sunlight to energy " Easy installation-no plugs " Stays illuminated for 8-12 hours " Built in light sensor turns on/off automatically " LED bulbs rated over 100,000 hours of life " If one light burns out, strand still stays lit " No electricity needed " Saves money " Overall dimensions: End to end: 40 ft; Light to light: 33 ft; Lead: 7 ft. " Choose: White, Red, Green, Blue, Red/Green