John is a god in the industry, he helped me get my Hiawatha Cars converted to LED's. I can't solder very well anymore since I had a few knuckles replaces so GRJ made it simple for me to do the conversion. Everything was prepackaged, assembled and all I needed to do was install the LED strip and solder the 2 points on the LED strip. Excellent advocate for the industry with a wealth of knowledge.
Hats off to John