WIDE APPLICATION SCENARIOS: This SJTW extension cord has passed UL certification and performs well in outdoor environments, meeting the needs of high-power electrical equipment in various complex weather conditions, such as lawn mowers, chainsaws, high-pressure water guns, Christmas lights, and other outdoor power tools used in gardens and garages. It is also very suitable for indoor household appliances such as microwave ovens, electric heaters, and computers. EXCELLENT PRODUCT PERFORMANCE: Made of copper and thick vinyl sheath that meets international standards, it has low resistance, low power transmission loss, moisture resistance, wear resistance, flame retardancy, and slip resistance. The 3 prong grounded plug increases safety, safe and durable, and has good flexibility for easy storage.