Hello,
look my homemade kit ;o)
http://www.jtso.fr/la-post-combustio...votre-jet.html
use google translator
At the beginning, I tried with the Led rubbers from HK with 24 LED , as you ... but the light isn't powerfull and too small diameter (24 or 48 or 72 ..) . ok for EDF jet, but not enough for turbine.
You need high luminecens LED on the ring.Best regards,
Sébastien