The modern LED light panels mentioned earlier in the thread that I’ve experienced are very bright, can be sited in places where it wouldn’t be safe for a marshal to be flagging, and be closer to the driver’s eye line. In my opinion, they can be great safety aid, but.....
They still have to be triggered by a marshal or RC.
Drivers still have to take notice of / obey the signal.
The latter can be the tricky bit.....
