Engineered Product (EPCO) LED RetroFit Conversion Kits come with a complete gear tray assembly to convert older 4 ft and 8 ft T8 or T12 strip-type luminaires into energy efficient LED luminaires. This is a low-cost efficient and effective replacement upgrade solution that delivers high performance high lumen output at a fraction of the cost compared to the purchase and installation of a new LED luminaire. Upgrading the existing strip type housing to a new LED luminaire is a simple and straight forward installation that improves the overall integrity, quality and sustainability of the lighting system as an energy management solution to reduce the buildings energy consumption.