These lights are remarkable. I am into more solar powered lights now especially for the yard! These days you can trust no one so better safe than sorry. I got these to go in the yard and I can only say I need more. They arrived today, I quickly placed the stakes. I adjusted the solar panel with the twist knob on it and also the light has one for adjusting. I turned the switch on so it would light up upon nightfall. I looked out and magic. I can now see anyone walking in my yard and any movement in my back yard. Amazing results!