AC WORKS 100ft Super-Duty L5-30 Cord 100-ft 8 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
8′ Remote Driver Extension Cord for LED X Series
AC WORKS 100 ft. 8/4 SOOW Super-Duty 4-Prong NEMA L14-30 30 Amp 250-Volt Generator Rubber Extension Cord SDL1430PR-100 - The Home Depot
GearIT 4-Prong 250V 50A RV & Camping Outdoor Power Cord Extension, 50 ft - Walmart.com