Yellow Jacket 2884 12/3 Heavy-Duty 15-Amp Extension Cord. Exclusive Yellow Jacket compound is more flexible and abrasion resistant at any temperature than standard vinyl compounds. Power Lite power indicator lamp glows through the extra heavy clear molded plug when the cord has power. Plugs are rugged durable and oversized. Suitable for Industrial and construction job site power. Meets OSHA specifications UL Listed. 12 Gauge. The Yellow Jacket (R) brand is a registered trademark of Coleman Cable Inc.