Arctic Blue extreme temperature TPE Rubber extension cords provide outstanding performance in extreme climate conditions at temperatures from -58 up to 221 deg F (-50 up to 105 deg C). Arctic Blue cords provide superior resistance to oil, moisture, ozone, cracking, and are outstanding in resistance to abuse, rough handling and wear. The Primelight Power Indicator Light in the connector shows when there is power through the cord. The Primelok Locking Connector prevents unwanted disconnects from power tools and appliances.