R90 Lighting offers the following in Joule Case portable power solutions in Seattle. Ditch the hassle of noisy generators for the convenience of portable, silent power on the go. Great for site lighting or limited cable run applications. The Joule Case battery packs are completely modular, so scaling your power needs is as easy as chaining the battery packs together under each control module. Completely rethink your power needs with these quiet, convenient, and eco-friendly power alternatives.