This is the ONLY plug you should be using to deliver AC Shore power to your boat. Many boats are destroyed by electrical fire every year due to faulty "Twist Lock" shore power connections. The Smart Plug eliminates all loose connections and possibility of arcing and fire. Don't miss this one very critical component in making sure YOUR boat is safe and sea worthy. Shore Power, (AC) is a very nice addition to your boat if you do not already have it, and the Smart Plug is the safest way to deliver it. Overheat protection is built right into the Smart Plug via the integrated trip thermostat that automatically cuts power in the event of overheating. Once internals have cooled down, the inlet automatically resets to restore power to your boat. The most secure connection ever invented for shore power, by way of Smart Plugs PATENTED Sleeve design, multi-point locking system, with straight electrical blades, that combine to form a solid connection, which can be both felt and heard, with NO TWISTING REQUIRED! GET THE BEST AND SAFEST, GET SMART PLUG! NOTE:  We sell this product here at RiversideGear because we are Boaters and we believe in the Peace of Mind that this product brings to any boat owner with shore power plugs on their boat. This is not just a new "Gimmick", this is a REAL SAFE electrical connection, FAR SUPERIOR to any other, and we feel obligated to help market this revolutionary new system, if for no other reason than for the boats that it can save, and quite possibly some lives too!. Call TOLL FREE 877-614-4327for assistance or questions.