Necessity is the mother of invention.

The guys above have pointed you in the right direction. Good Luck!
I was lucky, my wife bought me a pair of Hotlitze as a gift!

I got amber ones to use as turn signals (UK requires Amber turn signals) Plus it was nearly $2/£ exchange rate at the time!
I didn't want to clutter the rear of my truck with extraneous lights. A lot of folks here that run U.S. motors fit extra lights that look gawdawful!

P.S Welcome to the 'Bolt!