Like others have said, it's a great product. Give them a few extra bucks and get the Battery holder/storage box too. It comes with the wood precut and sanded, wire and connectors to set it up for 12 and 24 VDC. Once put together take it to Batteries Plus or the like and get a couple sealed 12 volt batteries for emergency lights. This thing will turn over anything but a small block Chevy. When you call they will ask what size spinner/s you are using to make sure you get the correct size cone.