I have had a solar fountain for a little over 3 years and had no problems until my neighbor decided to build a 4 story building next to me. Suddenly my full sunny day in the yard was reduced to just a few hours a day. I was about to buy an electric pump and hook up an extension cord when I came across this online. I thought it was worth a try for the price. I'm glad I took the risk. The cables connected in minutes and I hung my solar panel on a pole where the sun shines all day again.