Will see what this thread produces
I have bought a pack of 4 LED "Prism" Micro LEDS from Halfrauds in red (can get white, pink or blue too) for £5.
These need only a 6MM hole and include a snaplock holder, have not fired one up yet to see how bright/intense/hot one is, am considering one pointing down to the darkness of the storage behind the gear lever too.
What armrest have you got and how much, I need one too