[TenGees]

I'm curious as to what you're going to power those with, Rick.

There are some holders that have a 'cork' around the wires. Not sure how good the seal is. Example: https://www.sparkfun.com/products/11147

 

[TenGees]

If you run the LEDs at 24 mA or less (12v / 510 ohm) they should last as long as me, Rick. I know... not very reassuring.