I'd assume some electrical supply dealer or online. Bulk LED strip is what's mentioned in that post...
Many a site popped up on a google search of Bulk LED strip and this looked like a good start if you want to just order them online
Edit: added reference to the referenced post
2013 F150 EcoScrew XTR 6.5 Blue Flame - 3.73 MaxTow, Retro'd tow mirrors (ask + I will tell...)
2012 Sierra 1500 Nevada Edition - underpowered and sold
1994 BMW 325i - bro rolled it in the snow
1992 Jeep Cherokee 4.0HO 5spd - 33s, 3/4 ton rear leafs, dead Tcase
Last edited by Jeriko; 07-11-2014 at 12:21 AM.
Reason: adding reference