Designed with convenience in mind, easily seen in day or night. Power on indicator light lets you know when the power is running power. Temp-Flex-35 was developed to meet the demands of contractors for a super flexible vinyl cord set. Double insulated - individually insulated conductors surrounded by an outside jacket - with solid molded plugs. Outer jacket will not mar floors or walls and is resistant to abrasion and deterioration from moisture and sunlight. Specially formulated SJTW vinyl outer jacket won't crack or break, even at temperatures as low as -35-degrees F. Highly visible yellow color for safety. Made in the USA.