Sub Zero® 50' 12/3 SJEOW Extension Cord with HM Logo. Identifies that there is ground continuity in a circuit when the green light turns on. In addition, the lighted amber male plug indicates there is power flowing through the cord. -58 degree Fahrenheit "Sub Zero®" cold weather jacket insures working flexibility in temperatures well below freezing. Each of the three conductors contains 65 strands of 30 AWG 100% copper wire. "CGM" Continuous Ground Monitoring connector protected. 15A, 125V, 1875W.