The approach to my front door is very dark. I installed one solar light.. it casts just enough light to illuminate the entire area. Security and safety issue at my front door- resolved!
Im doing some landscaping in my backyard.  I needed some temporary lighting to keep an eye on my little dog. Im thinking now, I might not install the flood that I planned. The lights are bright and cover a wide area.  
The only issue that I have with the lights is that they stay on for only 15 seconds until motion is detected again.