Kossel fan holder led mount
thingiverse
This is a simple led mount for fan holder which you can find here: http://www.thingiverse.com/thing:1085088 You need to insert the mount between fan holder and the hotend fan. The mount is very simpe. You need to glue a led to it. I used this white led stripe http://www.banggood.com/Diatone-3-4S-LED-Decoration-Board-Strip-Set-For-250-Class-Frame-p-961260.html
Download Model from thingiverse
With this file you will be able to print Kossel fan holder led mount with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Kossel fan holder led mount.