Heavy duty 12 Gauge. High visibility neon colors for recognition. Flame resistant. Heavy duty outdoor jacket that is water resistant for added protection against moisture. Heavy-duty molded on 15A-125V plugs and connectors. 5/8″ strain reliefs in back of plug and connectors prevent ends from pulling away from cord body. Both plugs have a built in amber neon light which indicates there is power in the cord and outlet.