It's pretty much a round torch like beam. To avoid dazzling other road users just point it down towards the road. A twenty degree twist on the bars is the difference between full and dipped beam.
It still means you're wasting energy and could get a better light for the money.
As
https://swhs.home.xs4all.nl/fiets/tests/verlichting_analyse/index_en.html#licht-bundel-verlies says "[...] a fairly large amount of light is wasted (for road use) by circular beams. But not just that: [...] I estimate that a symmetric lamp must have ca. 3 to 4 times the power of an asymmetric lamp with cutoff, to light up the road as well (as useful) as that lamp with cutoff. [...]
Brightness near the bicycle, esp. close to the front wheel, will be nearly 2 times as bright. This is undesireable if it means the brightness will become too high [...]
Some people use headlamps with symmetric beam such as the Magicshine to give proper light on the road, but there is no good reason for doing so: There are good lamps for on-road use, i.e. of high quality and having a good light output with which one can safely cycle on unlit roads at speeds of 30 km/h and more [...] "
I don't agree with all the reviews on there (most notably, I think some lights are revised without changing name or packaging) but it's a pretty thorough analysis of the problems with bike lights.
