I used a set of [link=http://electrodynam.com/rc/EDR-117/index.shtml]Nav/Strobe Lites[/link] from ElectroDynamics. They are not the large photon cannons shown in some of the pix provided by others but are smaller and more subtle. Mine went into a C-ARF Rookie and with careful planning and technique the lites can be installed with no paint touch-up needed.