Just Power It Up by Monster offers reliable and secure power protection, backed by the company's decades of expertise in the field. With a history dating back to 1975, Monster has consistently set the standard for top-quality power protection, featuring the most advanced technology for optimal performance and safety. Always Lead. Never Follow. Introducing the ultimate extension cord for all of your outdoor needs - the Monster Just Power It Up Outdoor 50 ft. Yellow Extension Cord. This rugged 10/3 cord is designed to withstand the toughest conditions, making it perfect for use at construction sites, in your backyard, or anywhere else you need to extend your power source.