Furry's fat and long bikes

Does this work for you? My experience is that a bright light highlights the front of an obstacle/ bump but leaves the back completely black and invisible. Maybe it's just my reaction time is slow, but I sort of like to know in advance if there is anything lurking in that blackness like a tree root or a pothole.

Sorry that was pretty unclear.

I was thinking specifically of winter road/trail riding. A powerful light, mounted high up, gives a kind of white out effect on ice and snow. A lower light causes small shadows that allow you to better judge the snow or ice.

Off road. Yeah its nice to have both angles, and eliminate any shadows. the ability to switch between these situation is kinda what I'm looking for.