Woods Guardian Ground Fault Circuit Interrupter Plug-in Adapter (1651); 1875 Watt; 15 Ampere; 60 Hertz Install in seconds. The Guardian gives you extra protection from electrical shock caused by worn insulation, faulty connections and other hidden electrical problems by shutting off the flow of electricity within 1/40th of a second. Protect yourself and family from dangers of electrical shock with the Woods Guardian Ground Fault Circuit Interrupter (GFCI). 1875 Watt; 15 Ampere; 60 Hertz Guardian improves safety in basements, garages, workshops and wherever electrical tools are used.