This solar-powered revolving lighthouse beacon features an adjustable speed control, so you can set the rotation to your preference. Now you can have a fully functional lawn lighthouse beacon without electricity. This is a great beacon for those building their own DIY yard lighthouse, and it can also be used to upgrade older existing lighthouses. Many inexpensive solar beacons are small, use a single low-wattage garden pathway LED, and are barely bright enough to see. Ours are built to last.