The wiring harness is a simple construction. It consists of two QLV-1 MR16 GX5.3 ceramic socket holders with 8″ leads (Pictured above with the optics attached), two 3-position WAGO nuts, an 8″ length of 16 gauge red and black stranded wire, and a 5.5/2.5mm female barrel connector with screw terminals. The LEDs are connected in parallel across the positive and negative leads of the barrel connector.

Here’s another shot with the LEDs mounted and the barrel connector pointed at the camera: