It will not operate when supplied from a power source which is not grounded.
CEP 1443G2 GFCI 2′ EXTENSION CORD 20A / 125V
NEW IN PACKAGING…A LITTLE DUSTY…CEP 1443G2 GFCI 2′ LONG EXTENSION CORD. 20A / 125V. LS-20 TWIST PLUG AND RECEPTACLE. LS-20P LS-20R. EMAIL WITH ANY QUESTIONS. THANKS FOR LOOKING!!