The closest comparable red and amber LED option is the Optronics Thinline LED Trailer Fender Light w/ Bracket Amber/Red Lens item # MCL67ARB. It measures 4-1/16" long x 1-1/4" tall x 1-1/8" thick. You would run the power wire from your trailer to the light and the ground wire would be ran to the hardware attaching the base to your trailer. view full answer...