I am a Be LED ver!

[Cudajason]

what is the part number of the led's you used for the light bar? 

Also, yes electroluminecent lighting was used in the 60's on several mopars.   I have a 66 Charger that uses it...  Its very cool...but, wish it was standard lighting.   When a gauge that isn't made anymore shorts out on the luminescence its very costly to repair (only 1 guy that i know does it and i think he charges $100 per gauge plus shipping) as opposed to replacing a light bulb.   

I ordered these off of Amazon.

PESIC 10x BA9 BA9s 5-SMD 5050 White LED RV Car Tail Backup Corner Side Marker Light Bulbs

I will likely order others and add more LEDs through out the car.

Jason

[1 Wild R/T]

FWIW I ordered/installed these a couple years ago.... 
https://www.amazon.com/gp/product/B018LUUON8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
They are very bright but they work very well with the dimmer, very consistent/linear in their response to the dimmer...

[Jay Bee]

Another "FWIW", I bought Herb's kit at the Nat's years ago and just put them in this summer. Huge difference too.

https://www.herbsparts.com/products.asp?cat=3