High-Power Universal Socket: The retractable extension cord reel features a high-power universal socket compatible with both 16A and 10A devices, providing versatile power supply for outdoor or heavy-duty use and Safe Wiring: Designed with high flame retardant safety wire, this retractable electric cord reel ensures optimal safety during use, for both outdoor extension cord reels and high-power applications Effortless Automatic Retraction: Equipped with a built-in self-locking device and automatic telescopic design, this retractable cable reel retracts smoothly, offering convenience and efficiency for both residential and professional Adjustable Output Wire Length: The positioning ball design allows precise control over the extension cord retractable reel's output wire length, for heavy-duty extension cord reels in various environments Long-lasting Performance: Featuring a high-performance coil spring with a lifespan of over 100,000 retractions, this extension cord reel guarantees durability and reliable operation for both light-duty and electric cord reels retractable applications.