Heavy Duty & Safe: 14/3 extension cord heavy duty 10 feet; 15Amp 125Volt 1875 Watts, SJTW, ETL Listed; 14 AWG has a thicker wire diameter; can carry more power; and has less chance of getting hot; 1875W*1.5 (2812W) overload test; the wire temperature rise is qualified to ensure safety; Black extension cord 10ft suitable for indoor and outdoor; home office use High quality & practical: High temperature resistance (80), aging resistance, flame retardant, safe and reliable indoor extension cord; waterproof and anti-corrosion extension cord outdoor