40-Foot 12/3 SJEOW Cold Weather Extension Cord with Continuous Ground Monitoring Light - UL Listed Our Sub Zero coldweather rubber elastomer insulation and jacket guarantees working flexibility in temperatures well below freezing. Lighted amber Power Check plug Lighted green Ground Check connector We use heavy duty molded on 15A-125V NEMA 5-15 plugs & connectors with internal strain reliefs to prevent the ends from pulling away from the cord body UL Listed and cUL Approved