LED strip light retrofit kits convert fluorescent strip lights to LED technology to reduce operating costs. They use even less energy than fluorescent fixtures fitted with plug-and-play LED light bulbs, and they have built-in LED arrays so there are no bulbs to install or replace. The kits allow the base of the existing fixture to remain in place while replacing the side framing, interior components, and bulb with an LED strip. Strip lights are surface-mount fixtures with a simple housing that's slightly larger than the light bulbs it holds. They are typically used in workshops, access corridors, and back-of-house applications.