AFt Overhead Leading Edge devices indicator, what to use to get them working?

Hi Guys,
can anyone tell me how they have lit the leading edge devices in the aft overhead of the 737? i've looked at images on google but can't quite get my head around it! do you simply use some coloured perspex and stick some clear leds behind to show the colour when necessary? or do you place an individual led in each square hole colour according to position?
hope someone can add a simple solution thanks in advance ,Norman.:lol:

Hi,
I guess if you want to simulate the real thing you would have to use individual leds for every position because they light up according to the position of the leading edge devices being deployed. I would use green and amber colored leds.
Hope this helps

Martin

Yaye, I'm a forum groupie!