Locking extension cord features marine-grade 14/3 SJTOW cable and a slide button lock on the female end for protection against cable disconnection. The locking mechanism is compatible with all manufacturers' products, and the clear, lighted female end provides visual power indication. ETL certified to UL standards. Design prevents cable disconnection Lighted end provides power indication | Marinco ParkPower ® 50 15-Amp Locking Extension Cord with Light