Lezyne Zecto Alert and KTV Alert function and comparison

For 2021 Lezyne LED have the option of the “Alert“ function on the rear lights they produce. This option adds £5 to the RRP of each light. The Alert function uses accelerometers and functions in 2 ways. Firstly, upon braking or slowly down the light should go constant and bright. Then once stopped it will flash brightly in a different manner to all other flash settings. In order to test the lights and see the function working for myself I had a vehicle travel behind me while performing a set loop. At th