A 
system and method are provided for 
retrofitting a fluorescent 
lighting system, for example a passenger cabin fluorescent 
lighting system on a vehicle such as an aircraft. The present 
system may include at least one LED lighting unit for replacing, in situ, at least one 
fluorescent light of the fluorescent 
lighting system, and a control module for replacing, in situ, at least one 
ballast-type unit of the fluorescent lighting 
system that illuminates the at least one 
fluorescent light. The present system may further include a master control module, which may replace, in situ, an 
inverter of the fluorescent lighting system. The 
present method may include steps of: replacing at least one 
fluorescent light, in situ, with at least one LED lighting unit; and replacing at least one 
ballast-type unit, in situ, with at least one control module configured to control illumination of the LED lighting unit.