Relay light wiring for connection of two additional reverse lights. Extra long plus cable that easily (on most car models) reaches from your reverse lights all the way to the battery in the front of the car. Has two DT outputs (4 pin that works with reverse lights with built in strobe lights) and an input for control from the existing reverse light.
Also works with XBB Dongle and intended for 12V. See instructions here.
 
Measurements:
Plus cable (red): 3,9 m
Minus cable (black): 21 cm
DT connector no 1: 90 cm
DT connector no 2: 170 cm
Blue cable (to existing reverse lights): 88 cm
Suitable for Spectre Spotlights.