--- In email@example.com, "Rich" <astronut1001@...> wrote:
> To me the ideal consumablle battery taillight would have the following characteristics.
> 3. Broad beam to the rear.
I think this item is overrated.
I mean, sure, a wide beam is good if there is plenty of light to project rearward. But this is always a compromise resulting in reduced visibility.
An approaching vehicle is going to be in that "sweet spot," the slender cone within a couple of degrees directly centered behind your bike, right up until it's passing, at which point it had better have already seen you.
If the beam is being scattered sideways in the name of side visibility, the amount of light being projected directly back at approaching vehicles is being diminished. I don't see the usefulness in that.
I'd rather have a wide beam up front, so that vehicles at cross streets have a better chance of seeing me. But that's where my helmet light comes in handy.