Why must people use front lights which you could spot from the I.S.S. on their bikes? If they must, shouldn't there be a law that says that a bicycle front light, must be adjusted, for beam angle, as is required for motor vehicles?
Honestly, those types of lights - (with the battery packs and wide spread beams) are absolutely spot-on for those tight hard trails that aren't populated by dog walkers or joggers.
However, too many people buy these excessively powerful lights to use on the road - or, more commonly, for tow paths.
When People buy these chinese lights; they understand how powerful it is - and, they often (if not always) take into consideration how this may effect other road users.
Sadly, alot of those overly powered lights aren't designed to be positioned downward to reflect the light out the way. - (alot of those lights don't have good "reach" on their beams, just spread; meaning their ability to angle their lights is further impeded.)
- Pointing them "downward" from your angle in the cockpit (while still maintaining visibility ahead) does not save our eyes. - This is where most people get it wrong, for alot of those lights they will only be comfortable to view if
A) they are pointed so far down that it would be impossible to see the glass lens of the light
B) they are turned down to the lowest setting possible.
There are exceptions in many cases, but this is the most common I find to
Why people leave them blindingly bright while acknowledging your presence.