Imagine not paying for electric , this is the best. I just bought these solar lights for my walkway from Seacoastlighting.com and they are amazing. They have 4 LEDs in them , the girl from customer service told me on the phone that these would be really bright and last into dawn and she was correct. Watching them come on automatically at dusk it amazing, and they last well into morning. Finally I dont have to worry about transformers and wiring issues, when power goes out these still come on. If anyone is thinking of solar lighting for there out doors this is a great way to light up your yard that any homeowner can do .