Hi there i also work with LED Bars.
as you can only build in 1 source of light you would helb me with a fixture that looks a bit like 1/3 of those standard les bars. (1 segment)
RGB as dmx channels would be enough.
photometrics can be found here 4 example
http://www.americandj.com/pdffiles/mega ... etrics.pdfdimensions for the ADJ mega bar
• Dimensions (LxWxH): 40.5” x 2.75” x 3.5” / 1025x65x88 mm
(but i would need only 1/3 of the length to build up 3 sources of light like the original has.