MagicshineSEEMEE 100AD Radar Detection Taillight(Return to Product Page)

I'm struggling between 3-4

First light I received did not work. Dead battery. After some back and forth with Magic Shine, I got a replacement from BTD.

The light is small and light

It is bright enough to be used as a day light. It does not provide any audible warning to you, but goes banana when a car approaches. I can trigger it by simply moving the bike fast enough against a stationary car or even a wall.

The only downside is run time. If you use the radar function, you'll be lucky to 4 hr. I'm sure 15-18 hrs can be achieved on lower setting without radar. However, since it is a radar light, what's the point of buying it if you are not using it that way

Simple car back sentinel, no beeps, boops or alerts, just does its thing and warns off drivers by itself.