LED lighting system for retrofitting an aircraft cabin fluorescent lighting system

An LED lighting system for retrofitting a fluorescent lighting system including a lighting bus, an inverter connected to a DC power bus for outputting AC power to the lighting bus, first and second fluorescent lights, and first and second ballast-type units that receive the AC power from the lighting bus and respectively control illumination of the first and second fluorescent lights, the system comprising:

• a first LED lighting subsystem including a first LED lighting unit, and a first control module electrically connected to the lighting bus and the first LED lighting unit for controlling illumination of the first LED lighting unit, the first LED lighting unit replacing, in situ, the first fluorescent light, and the first control module replacing, in situ, the first ballast-type unit;
• and
• a second LED lighting subsystem including a second LED lighting unit, and a second control module electrically connected to the lighting bus and the second LED lighting unit for controlling illumination of the second LED lighting unit, the second LED lighting unit replacing, in situ, the second fluorescent light, and the second control module replacing, in situ, the second ballast-type unit;
• wherein at least one of the first and second LED lighting unit is configured to further replace at least one additional fluorescent light, said at least one of the first and second LED lighting unit comprising:
• first and second circuit boards on which a plurality of LEDs are mounted, the first and second circuit boards being oriented end-to-end;
• a nonconductive spacer for mechanically coupling an end of the first circuit board with an adjacent end of the second circuit board;
• and
• a jumper for electrically connecting LEDs mounted on the first circuit board with LEDs mounted on the second circuit board.