Generator Adapter L14-30P to generator twist lock L5-30R 125V/2500W. Molded with electroplate copper terminal in order to avoid surface oxidation effectively. Generator Locking 4-prong 30A L14-30 male plug. Generator Locking 3-prong 30A 125V L5-30 female receptacle. Connect a Locking 30 AMP L14-30 plug to Twist Lock 30 AMP 3-prong L5-30 adapter, Heavy-duty round power adapter plug for generator. 1 piece AC adapter molded PVC with 100% copper conductor inside, Test by UL & cUL standard. Yellow Adapter with lighted inside.