Is that one you own, or one you want in your RF? If youre looking for a fantastic self contained RF LED unit, I suggest mrgr8ness. I just bought 2 units from him that are amazing.
they activate by lowering the RF into the down position(Mercury switch?) lights alternate blinking. Very reasonable price as well.
thats the one i have for my persnoal helmet but cant figure a way to make it work at all...
btw way i have seen those you link and if i cant make this one work will def buy it.
