I wanted a light inspection but I did not spend a lot of money in it!
for this assembly must:
- 5g sugru (sugru.com)
- Optical fiber (http://www.conrad.fr/ce/fr/product/183385/Cble-de-fibres-optiques-en-plastique/SHOP_AREA_17419&promotionareaSearchDetail=005 about 2$)
- Cheap led light (about 2$)
thanks to this montage you can illuminate in very small places without being dazzled by a large light!
electric path must be cut to keep only lighting of the central LED