[EricH]

Originally Posted by KosmicKhaos

As for other flashlights remote IR transmitters would this fall under special equipment rules?

It could. However, note that under T21B, non-powered signalling devices are perfectly legal. Items 1-3 in the above list are perfectly fine under T21B. But by the same token, that means that powered signalling devices are not legal.


So, let's break this down slightly differently (because somebody is being picky about their interpretations...).

Signals using the part of the electromagnetic spectrum that is used by wireless communications are specifically banned unless specifically allowed (the FMS signal, basically). Signals using the infrared or ultraviolet parts of the same spectrum run into issues with powered signalling devices.

But signals using the visible part of the electromagnetic spectrum are just fine.