[Premium & Durable Construction] DEWENWILS green extension cord is crafted using high-quality all-copper wire, and double jacketed design for maximum sturdiness; with its full-molding construction, it can withstand a lifetime of wear and tear; ETL certified for safe use [16/3 Gauge Heavy Duty] SJTW extension cord AC 125V/13A/1625W power rated, the outer jacket is flame retardant, wear-resistant and waterproof which can prevent the power cable inside from damp, abrasion and sunlight, it is suitable for temperatures from -40°F to 130°F