Baja Designs LED IR Follow Me Light
This light is has been designed to have a small physical footprint and produce a serious amount of 940nm IR lighting.
With the small housing design it can be mounted virtually anywhere on a vehicle and not be easily identified. With the 940nm IR light signature it will only be able to be identified by someone wearing infrared googles.
This light draws very little, and can run on a 12v DC system.