I’ve just completed a diy install of the Smart Brake System
I think its a worthwhile safety farkle adding a feature to the existing tail light.
A way of signalling traffic behind me that I’m slowing down even if I have not touched the brakes.
The device works off an accelerometer.
You can set it to turn on the bright brake light upon deceleration or to flash.
The lil’ black box fit snugly under the bar which locks the seat.
Secured with two zip ties as pointed out by my needlenose pliers.
I chose this location because its a nice horizontal level support.
I tapped the three wires just near the white socket as shown on the top left corner of the pic.
In terms of diy degree of difficulty, I’ll give it a rating of 2cw.
That’s the number of cusswords I yelled out during install.
I paid retail and am not affiliated to the manuf or vendor.