The Prime Wire and Cable CW511635 100-Feet 16/3 SJTW -50-DegreeC Glacier Flex Cold-Weather Blue Extension Cord with Prime light, Power Indicator Light is an all-weather vinyl extension cord which provides outstanding performance in extreme climate conditions at temperatures from -58-DegreeF to +140-DegreeF (-50-DegreeC to +60-DegreeC). GLACIER FLEX cords provide superior resistance to moisture, ozone, cracking, and are outstanding in resistance to abuse, rough handling and wear. The lighted connector allows you to see when the power is on. They are Water Resistant, Flame Retardant, Ultra Flexible, Abrasion Resistant and Nickel-Coated Brass Blades Resist Corrosion. Flexible Temperature Range (-58F - +221F).