Butler Manufacturing has introduced its RetroLite™ daylighting system, which can reduce a building’s lighting-related electricity expenses by up to 70 percent. The RetroLite daylighting system, specially designed to replace the Lite*Panl® panel system, is available for retrofit applications to an MR-24® or CMR-24® roof system. Product benefits include the ability to add weathertight protection, harness the power of prismatics and simplify installation. Contact a local Butler Builder® dealer for further information on the Landmark 2000 structural system. For more information, visit www.butlerbuilder.com.