After looking into the web for new figures out of the Knightworld, I found some Archer can be placed under the glass of my medieval Madness and make the same LED Mod at the arrowhead as weeks ago.
Some cutting, some drilling and wires
making a 5mm LED look like a arrowhead 
replaced the arrowhead
drilling for a hole through the plastics, wires, glue.
connectors for solderfree connecting
look here for pictures at the right place…
right one, without light
both together
I got the plastics to connect the archers
Click here for Installation Manual
Video#1:
Video #2:
