Originally Posted by RPK79

Turn indicators on a helmet are not going to be very effective. They're too close together to be clear to drivers and since bikes generally do not have turn signals drivers will not expect to see them; instead, they will think it is just another blinking light.

Originally Posted by njkayaker

That's interesting.

It looks like no turn signal that any driver has ever seen.

That is, it might work to be noticed but it likely work poorly as a turn signal (drivers will have no idea what it means).

Originally Posted by wphamilton

I think it looks sharp, very Tron like. Turn signal, I don't know. Drivers might not be able to see it from behind and at certain angles, or might not see it as a turn signal. And if you're moving your head around, seems possibly problematic. But try it out, and to be sure, ask random drivers if they understood it. Politely that is.

I wouldn't use glue, but get some industrial strength velcro tape. It will hold that, and would be easy to take off when you feel like riding less flamboyantly.